A universal furnace cooling device for analytical instruments

Abstract

The present invention proposes a universal furnace cooling device for analytical instruments, comprising: a furnace, a chamber door, a power assembly and a manual door opening mechanism; wherein one side of the chamber door is rotatably mounted on one side of the furnace; the other side of the chamber door moves with the power assembly and the manual door opening mechanism; the power assembly is mounted on the furnace; the output end of the power assembly is connected to the manual door opening mechanism through a lock structure; the manual door opening mechanism is mounted on the moving side of the chamber door. The present invention adopts a fully automatic method to open the chamber door for heat dissipation and cooling, and then the chamber door can be fully opened by pressing the handle, which is convenient for maintenance and improves the versatility of the cooling device.

Description

Technical Field

[0001] The invention belongs to the technical field of furnace cooling, and in particular relates to a universal furnace cooling device for analytical instruments. Background Art

[0002] Chromatograph is a device for chromatographic separation and analysis. Online chromatograph is a process analysis instrument that is directly installed in the process flow and automatically and continuously analyzes the composition or physical property parameters of the material. It is the most competent process analysis instrument for process industry analysis and testing requirements, and plays a very important role in optimizing process operation, stabilizing product quality and safe production. The actual separation of sample components is achieved through the chromatographic column, which is the core part of chromatographic technology. In the online chromatographic analyzer, the main function of the chromatographic column is to separate the analyzed medium. The sample passes through the chromatographic column to achieve the purpose of separation. In order to ensure that the oil components are separated as required, it is usually necessary to use a programmed temperature increase method for the chromatographic column. The determination of the column temperature of the chromatographic column is mainly determined by the complexity and vaporization temperature of the sample. In addition, each chromatographic column has a different maximum operating temperature due to the different stationary liquids used, and should be selected according to the fraction weight and analysis requirements of the analyzed sample. For example, when the online color analyzer analyzes the components of some oil products, the working temperature is usually between 35℃ and 330℃, and the temperature of the chromatographic column reaches 330℃. When the instrument ends an analysis cycle, it must drop to 35℃ before entering the next analysis cycle. The online instrument is restricted by the on-site environment and the working environment is relatively harsh, especially in summer. The temperature in the instrument analysis room is above 40℃. It often takes several hours to reach the starting temperature by natural air cooling, which cannot achieve the purpose of real-time and rapid analysis of the online instrument. Therefore, a safe and reliable cooling method should be found to shorten the instrument analysis cycle and meet production needs. To achieve this goal, an active cooling method should be adopted, and the cooling medium should be lower than 35℃. The lower the medium temperature, the better the cooling effect.

[0003] Common chromatographic column analyzers mainly use a box-type cooling structure, the principle of which is to set a door leaf on the rear wall of the box, and then manually open the door leaf to achieve the purpose of cooling and maintenance. However, due to the large size of the door leaf, it is inconvenient to operate. Summary of the invention

[0004] The purpose of the present invention is to provide a universal furnace cooling device for analytical instruments, which adopts a fully automatic method to open the furnace door for heat dissipation and cooling, and then press the handle to fully open the furnace door, which is convenient for maintenance and improves the versatility of the cooling device. To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A universal furnace cooling device for analytical instruments, comprising: a furnace, a furnace door, a power assembly and a manual door opening mechanism;

[0006] Wherein, one side of the chamber door is rotatably mounted on one side of the furnace; the other side of the chamber door moves with the power assembly and the manual door opening mechanism;

[0007] The power assembly is installed on the furnace; the output end of the power assembly is connected to the manual door opening mechanism through a lock structure; the manual door opening mechanism is installed on the moving side of the chamber door.

[0008] Preferably, the manual door opening mechanism comprises a base, a latch, a spring, a fixed pin, a sliding pin and a handle;

[0009] Wherein, the base is installed on the chamber door; the base comprises an upper base, a connecting base and a lower base which are connected in sequence; the connecting base is close to the furnace direction; a mounting groove is formed between the upper base, the connecting base and the lower base; the mounting groove is a through groove and is opened along the thickness direction of the chamber door;

[0010] The latch is placed in a movable groove of the upper base, passes through the mounting groove and extends out of the lower base; the free section of the latch and the driven rack structure directly form a locking structure;

[0011] The two ends of the fixing pin are respectively mounted on the connection base and located in the mounting groove;

[0012] The sliding pin is mounted on the latch pin;

[0013] The spring is sleeved on the latch pin; the spring is placed between the upper base and the sliding pin;

[0014] The handle is provided with pin holes which respectively cooperate with the fixed pin and the sliding pin; the handle is located in the mounting groove and extends out of the chamber door.

[0015] Preferably, the connection base includes two oppositely arranged sub-connection bases.

[0016] Preferably, it further comprises a guide base; the guide base is installed below the lower base; a guide groove is formed between the guide base and the lower base; and the driven rack structure moves along the guide groove.

[0017] Preferably, the guide base and the lower base are integrally formed.

[0018] Preferably, the power assembly includes a stepper motor and a rack and pinion drive assembly; the stepper motor drives the rack and pinion drive assembly; the rack and pinion drive assembly includes a driven rack structure; the driven rack structure is connected to the manual door opening mechanism via a lock structure.

[0019] Preferably, the driven rack structure includes a rack and a buckle installed on the moving end of the rack; the lock structure is formed between the buckle and the latch.

[0020] Preferably, the rack passes through the furnace wall.

[0021] Preferably, a protrusion is provided on a side surface of the chamber door facing the furnace; and the protrusion cooperates with the inner wall of the furnace.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: through the control unit and the gear rack drive assembly, the present invention adopts a fully automatic method to open the chamber door for heat dissipation and cooling, and then the handle is manually pressed to lift the latch, the latch is separated from the buckle, and the handle is pulled to fully open the chamber door, which is convenient for maintenance and improves the versatility of the cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A state diagram after automatic door opening provided by an embodiment of the present invention;

[0024] Figure 2 A structural diagram of a manual door opening mechanism provided in one embodiment of the present invention;

[0025] Figure 3 This is a state diagram after manual door opening provided by an embodiment of the present invention.

[0026] Among them, 1-furnace, 2-chamber door, 3-power assembly, 4-manual door opening mechanism, 41-base, 42-latch, 43-spring, 44-fixing pin, 45-sliding pin, 46-handle, 5-buckle, 6-bump, 7-guide groove. DETAILED DESCRIPTION

[0027] The general furnace cooling device for analytical instruments of the present invention will be described in more detail below in conjunction with a schematic diagram, wherein preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art may modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation of the present invention.

[0028] like Figure 1 , Figure 3As shown, a universal furnace 1 cooling device for analytical instruments comprises: a furnace 1, a chamber door 2, a power assembly 3 and a manual door opening mechanism 4; wherein, one side of the chamber door 2 is rotatably installed on one side of the furnace 1; the other side of the chamber door 2 moves with the power assembly 3 and the manual door opening mechanism 4; the manual door opening mechanism 4 is installed on the moving side of the chamber door 2; the power assembly 3 receives a signal from a control unit; in this embodiment, the power assembly 3 comprises a stepping motor and a gear rack driving assembly; the stepping motor drives the gear rack driving assembly; the gear rack driving assembly comprises a driven rack structure; the driven rack structure is connected to the manual door opening mechanism through a locking structure; the driven rack structure is connected to the manual door opening mechanism 4 through a locking structure; the driven rack structure extends out to push out the manual door opening mechanism 4, i.e., to open the chamber door 2, and then the manual door opening mechanism 4 is pressed down and pulled outward to separate the two components that cooperate with each other in the locking structure, i.e., to completely open the chamber door 2. In other embodiments other than this embodiment, the power assembly 3 may be a crank-connecting rod mechanism, a cam mechanism, a ball screw mechanism, etc.

[0029] like Figure 2 As shown, the manual door opening mechanism 4 includes a base 41, a latch 42, a spring 43, a fixed pin 44, a sliding pin 45 and a handle 46; wherein the base 41 is installed on the chamber door 2; the base 41 includes an upper base, a connecting base and a lower base connected in sequence; the connecting base is close to the furnace 1; a mounting groove is formed between the upper base, the connecting base and the lower base; the mounting groove is a through groove and is opened along the thickness direction of the chamber door 2; the latch 42 is placed in a movable groove of the upper base, passes through the mounting groove and extends out of the lower base; the free section of the latch 42 and the driven rack structure directly form a lock Buckle structure; both ends of the fixed pin 44 are respectively mounted on the connecting base and located in the mounting groove; the sliding pin 45 is mounted on the latch pin 42; the fixed pin 44 is equivalent to the fulcrum for the action of the handle 46, and the handle 46 takes the fixed pin 44 as the origin to drive the sliding pin 45 to move up and down; the spring 43 is sleeved on the latch pin 42; the spring 43 is placed between the upper base and the sliding pin 45; the function of the spring 43 is to provide a restoring force for the latch pin 42 to return to its original position; the handle 46 is provided with pin holes which cooperate with the fixed pin 44 and the sliding pin 45 respectively; the handle 46 is located in the mounting groove and extends out of the chamber door 2.

[0030] In this embodiment, the connection base includes two oppositely arranged sub-connection bases.

[0031] In this embodiment, a guide base 41 is further included; the guide base 41 is installed below the lower base; a guide groove 7 is formed between the guide base 41 and the lower base; and the driven rack structure moves along the guide groove 7.

[0032] In this embodiment, the guide base 41 and the lower base are integrally formed.

[0033] In this embodiment, the driven rack structure includes a rack and a buckle 5 installed at the moving end of the rack; a locking structure is formed between the buckle 5 and the latch 42, that is, the through hole in the buckle 5 and the free end of the latch 42 cooperate.

[0034] In this embodiment, the rack passes through the wall of the furnace 1 , that is, the rack passes through the outer wall of the furnace 1 .

[0035] In this embodiment, a protrusion 6 is provided on one side of the chamber door 2 facing the furnace 1 ; the protrusion 6 cooperates with the inner wall of the furnace 1 to ensure the sealing between the chamber door 2 and the furnace 1 .

[0036] The working principle of the present invention is: through the control unit and the power component 3, the present invention adopts a fully automatic method to open the chamber door 2 for heat dissipation and cooling, and then manually press the handle 46 to lift the latch 42, and the latch 42 is separated from the buckle 5. The handle 46 is pulled to fully open the chamber door 2, which is convenient for maintenance and improves the versatility of the cooling device.

[0037] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the content of the technical solution of the present invention and still falls within the protection scope of the present invention.

Claims

1. A universal furnace cooling device for analytical instruments, characterized in that: include: Furnace, chamber door, power assembly and manual door opening mechanism; Wherein, one side of the chamber door is rotatably mounted on one side of the furnace; the other side of the chamber door moves with the power assembly and the manual door opening mechanism; The power assembly is installed on the furnace; the output end of the power assembly is connected to the manual door opening mechanism through a lock structure; the manual door opening mechanism is installed on the moving side of the chamber door; The manual door opening mechanism comprises a base, a latch, a spring, a fixed pin, a sliding pin and a handle; Wherein, the base is installed on the chamber door; the base comprises an upper base, a connecting base and a lower base which are connected in sequence; the connecting base is close to the furnace direction; a mounting groove is formed between the upper base, the connecting base and the lower base; the mounting groove is a through groove and is opened along the thickness direction of the chamber door; The latch is placed in a movable groove of the upper base, passes through the mounting groove and extends out of the lower base; the free section of the latch and the driven rack structure directly form a locking structure; The two ends of the fixing pin are respectively mounted on the connection base and located in the mounting groove; The sliding pin is mounted on the latch pin; The spring is sleeved on the latch pin; the spring is placed between the upper base and the sliding pin; The handle is provided with pin holes respectively matched with the fixed pin and the sliding pin; the handle is located in the mounting groove and extends out of the chamber door; The power assembly includes a stepper motor and a gear rack drive assembly; the stepper motor drives the gear rack drive assembly; the gear rack drive assembly includes a driven rack structure; the driven rack structure is connected to the manual door opening mechanism through a lock structure.

2. The universal furnace cooling device for analytical instruments according to claim 1, characterized in that: The connection base includes two sub-connection bases which are arranged opposite to each other.

3. The universal furnace cooling device for analytical instruments according to claim 1, characterized in that: It further includes a guide base; the guide base is installed below the lower base; a guide groove is formed between the guide base and the lower base; and the driven rack structure moves along the guide groove.

4. The universal furnace cooling device for analytical instruments according to claim 3, characterized in that: The guide base and the lower base are integrally formed.

5. The universal furnace cooling device for analytical instruments according to claim 1, characterized in that: The driven rack structure includes a rack and a buckle installed at the moving end of the rack; the lock structure is formed between the buckle and the latch.

6. The universal furnace cooling device for analytical instruments according to claim 5, characterized in that: The rack passes through the furnace wall.

7. The universal furnace cooling device for analytical instruments according to claim 1, characterized in that: A bulge is arranged on one side of the chamber door facing the furnace; the bulge matches with the inner wall of the furnace.

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