A gas density relay and its micro-switch mounting rack, assembly component and linkage triggering device

Abstract

The utility model relates to a kind of gas density relay and its microswitch's mounting bracket, assembly component, linkage trigger device, install microswitch by being set on base plate and being set multiple stand columns of rotation symmetry by hole, through hole is used to pass through driving rod, in this way, microswitch can be rotation symmetry and install around driving rod, when driving rod drives driving assembly trigger microswitch, it can linkage and trigger each microswitch, such layout, make driving rod stress uniform, cannot produce lateral deformation, driving assembly also cannot produce unbalanced wear, to guarantee the accuracy of microswitch trigger signal.In addition, such layout makes full use of the space around driving rod and the characteristics that density relay shell is cylindrical, so that the narrow inner cavity of density relay can be fully utilized, and the product structure is compact and reasonable.

Description

Technical Field

[0001] This utility model relates to a gas density relay and its micro switch mounting bracket, assembly components, and linkage triggering device, belonging to the field of gas density monitoring technology. Background Technology

[0002] Gas density relays are used to monitor the density of insulating gases in gas-insulated equipment. They typically employ microswitches, which are triggered by a triggering device to convert the physical signal generated by changes in gas density into an electrical signal. To comprehensively monitor gas density parameters, multiple microswitches are generally required to generate signals. These microswitches need to maintain consistency and coordination in their actions. Given the limited space within the gas density relay housing, how to design and arrange these interconnected microswitches is a significant problem that needs to be solved. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a mounting bracket, assembly assembly, and linkage triggering device for a gas density relay and its micro switch, which can cleverly arrange the micro switch and make reasonable and compact use of space.

[0004] To achieve the above objectives, this utility model provides a mounting bracket for a gas density relay micro switch, including a base plate with a through hole for a drive rod to pass through. A plurality of columns are arranged around the through hole axis. Each column has a positioning mounting surface with a threaded mounting hole for positioning and mounting the micro switch. The positioning mounting surface and the threaded mounting hole on each column are rotationally symmetrical about the axis of the through hole.

[0005] Preferably, each column is rotationally symmetrical about the axis of the through hole.

[0006] Preferably, the cross-section of the column is L-shaped, and the column includes a main plate and a positioning plate. The outer side of the positioning plate is the positioning mounting surface. The positioning mounting surface of each column and the inner side of its adjacent main plate form a first accommodating space. The inner sides of the main plate and the positioning plate of the same column form a corner-shaped second accommodating space.

[0007] Preferably, the base plate and the column are an integral structure.

[0008] Preferably, the bottom surface of the base plate is a machining reference surface, and the positioning mounting surface and the threaded mounting hole are machined relative to the machining reference surface.

[0009] Preferably, the back of the main support plate has a clearance groove for mounting screws.

[0010] Corresponding to the mounting bracket of the gas density relay and its micro switch of this utility model, this utility model also provides an assembly assembly of the gas density relay micro switch, including the mounting bracket of the gas density relay micro switch described in the above technical solution, with a micro switch mounted on the positioning mounting surface of each column, and a micro switch distributed in each first accommodating space, and each micro switch being rotationally symmetrical about the through hole axis.

[0011] Corresponding to the assembly of the gas density relay micro switch of this utility model, this utility model also provides a linkage triggering device for the gas density relay micro switch, including the assembly of the gas density relay micro switch described in the above technical solution, and a driving assembly. The driving assembly includes a driving rod and a connecting frame. The driving rod passes through a through hole in the base plate of the mounting frame. The connecting frame is fixed to the top of the driving rod. The connecting frame is connected to a number of pressing rods equal to the number of micro switches. Each second accommodating space has one pressing rod. Each pressing rod rotates symmetrically around the driving rod. The driving rod is driven by a bellows to move up and down. Each pressing rod synchronously presses or releases the button on the micro switch.

[0012] As a preferred embodiment of the gas density relay micro switch linkage triggering device of this utility model, the pressing direction of the button of the micro switch is perpendicular to the pressing rod, one end of the pressing rod has a smoothly transitioned pressing head, and the side of the pressing rod has a vertically arranged pressing and holding surface.

[0013] As a preferred embodiment of the gas density relay micro switch linkage triggering device of this utility model, it further includes a housing, wherein the assembly assembly, drive assembly and bellows are all sealed in the inner cavity of the housing, the bellows is sealed with compensating gas, and the housing has an inflation port for connecting to the insulating gas chamber of electrical equipment, the inflation port being connected to the inner cavity of the housing.

[0014] As another preferred embodiment of the gas density relay micro switch linkage triggering device of this utility model, it further includes a housing, wherein the assembly assembly, drive assembly and bellows are all sealed in the inner cavity of the housing, the inner cavity of the housing is sealed with compensating gas, and the bellows has an inflation port for connecting to the insulating gas chamber of electrical equipment, the inflation port being connected to the inner cavity of the housing.

[0015] Corresponding to the gas density relay micro switch linkage triggering device of this utility model, this utility model also provides a gas density relay, including the gas density relay micro switch linkage triggering device described in the above technical solution.

[0016] As described above, the mounting bracket for a gas density relay microswitch of this utility model uses multiple pillars arranged symmetrically around a through hole on a base plate to mount the microswitch. The through hole allows the drive rod to pass through, enabling the microswitch to be mounted symmetrically around the drive rod. When the drive rod triggers the drive assembly to activate the microswitch, all microswitches are triggered in a coordinated manner. This layout ensures uniform force on the drive rod, preventing lateral deformation and uneven wear of the drive assembly, thus guaranteeing the accuracy of the microswitch trigger signal. Furthermore, this layout fully utilizes the space around the drive rod and the cylindrical shape of the density relay housing, making full use of the relay's small internal cavity, resulting in a compact and rational product structure.

[0017] The present invention relates to a gas density relay and its assembly components and a linkage triggering device, which includes the aforementioned mounting bracket and, of course, also has the aforementioned beneficial effects, which will not be elaborated here. Attached Figure Description

[0018] Figure 1 The diagram shows a three-dimensional structure of the mounting bracket.

[0019] Figure 2 Shown is a top view of the assembly of a gas density relay micro switch.

[0020] Figure 3 Shown is a top view of the assembly of a gas density relay micro switch, with a cross-section of one of the push rods and connecting brackets.

[0021] Figure 4 Displayed as Figure 3 Sectional view at point BB.

[0022] Figure 5 The diagram shows the push rod moving downwards and making contact with the micro switch button.

[0023] Figure 6 This diagram illustrates the action of pressing the microswitch button into place by moving the lever downwards.

[0024] Component designation explanation

[0025] 1 Mounting rack

[0026] 2. Base plate

[0027] 3. Drive lever

[0028] 4. Through the hole

[0029] 5 columns

[0030] 6. Positioning and mounting surface

[0031] 7. Micro switch

[0032] 8 threaded mounting holes

[0033] 9 Main Elevating Panels

[0034] 10 positioning uprights

[0035] 11 clearance slots

[0036] 12 First screw

[0037] 13 First Accommodation Space

[0038] 14 Second Accommodation Space

[0039] 15 Second screw

[0040] 16 connecting brackets

[0041] 17 Pressing lever

[0042] 18 Corrugated Pipe

[0043] 19 buttons

[0044] 20 press heads

[0045] 21 Press and hold surface

[0046] 22 shell

[0047] 23 air inlets

[0048] 24 partitions Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0050] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0051] Please refer to Figures 1 to 4This utility model provides a mounting bracket for a gas density relay micro switch, including a base plate 2. The base plate 2 has a through hole 4 for a drive rod 3 to pass through. A plurality of columns 5 are arranged around the through hole 4. Each column 5 has a positioning mounting surface 6 and a threaded mounting hole 8 for positioning and mounting the micro switch 7. The positioning mounting surface 6 and the threaded mounting hole 8 on each column 5 are rotationally symmetrical about the axis of the through hole 4.

[0052] This utility model relates to a mounting bracket for a gas density relay microswitch. Multiple pillars 5, symmetrically arranged around a through-hole 4, are used to mount the microswitches 7 on a base plate 2. The through-hole 4 allows a drive rod 3 to pass through. This allows the microswitches 7 to be mounted symmetrically around the drive rod 3. When the drive rod 3 actuates the drive assembly to trigger the microswitches 7, all microswitches 7 are triggered in a coordinated manner. This layout ensures uniform force on the drive rod 3, preventing lateral deformation and uneven wear of the drive assembly, thus guaranteeing the accuracy of the trigger signal from the microswitches 7. Furthermore, this layout cleverly utilizes the space around the drive rod 3 and the cylindrical shape of the density relay housing 22, allowing for a rational and compact use of the density relay's small internal cavity, resulting in a compact and small product structure.

[0053] As a preferred method, such as Figure 1 As shown, each column 5 is rotationally symmetrical about the axis of the through hole 4. This symmetrical arrangement makes the mounting bracket 1 easier to manufacture, and allows for the rotationally symmetrical installation and layout of each microswitch 7, maximizing space utilization and resulting in a more balanced distribution of the drive rod 3 and its related drive components. To ensure the mounting bracket 1 has good structural and mechanical properties, such as... Figure 1 As shown, the base plate 2 and the column 5 are an integral structure. The mounting frame 1 can be manufactured by machining a complete steel or aluminum block, or it can be cast to form the basic structure of the mounting frame 1, and then machined to form the positioning mounting surface 6 and threaded mounting holes 8. For ease of machining and positioning, preferably, the bottom surface of the base plate 2 is the machining reference surface, and the positioning mounting surface 6 and threaded mounting holes 8 are machined relative to the machining reference surface.

[0054] like Figure 1As shown, the column 5 has an L-shaped cross-section and includes a main plate 9 and a positioning plate 10. The outer side of the positioning plate 10 is a positioning mounting surface 6. The positioning mounting surface 6 of each column 5 and the inner side of its adjacent main plate 9 form a first receiving space 13, which is used to accommodate a micro switch 7. The inner sides of the main plate 9 and the positioning plate 10 of the same column 5 form a corner-shaped second receiving space 14, which is used to accommodate a pressing rod 17. To facilitate the installation and connection of the mounting bracket 1, the back of the main plate 9 has a relief groove 11 for mounting screws.

[0055] Corresponding to the mounting bracket for the gas density relay and its micro switch of this utility model, this utility model also provides an assembly assembly for the gas density relay micro switch 7, such as... Figure 2 and Figure 3 As shown, the assembly of the gas density relay micro switch 7 includes the mounting bracket for the gas density relay micro switch described in the above technical solution. One micro switch 7 is mounted on the positioning mounting surface 6 of each column 5, and one micro switch 7 is distributed in each first receiving space 13. Each micro switch 7 is rotationally symmetrical about the axis of the through hole 4. The positioning mounting surface 6 is provided with a threaded mounting hole 8, in which a second screw 15 is installed, fixing the micro switch to the positioning plate.

[0056] from Figure 2 and Figure 3 It is evident that the micro switch 7 is cleverly and compactly arranged on the mounting bracket 1, neither taking up extra space nor wasting space.

[0057] Corresponding to the assembly of the gas density relay micro switch 7 of this utility model, this utility model also provides a gas density relay micro switch linkage triggering device, such as... Figure 2 , Figure 3 and Figure 4 As shown, the microswitch linkage triggering device includes the assembly of the gas density relay microswitch 7 described in the above technical solution, and a drive assembly. The drive assembly includes a drive rod 3 and a connecting frame 16. The drive rod 3 passes through the through hole 4 on the base plate 2 of the mounting frame 1. The connecting frame 16 is fixed to the top of the drive rod 3. The connecting frame 16 is connected to a number of pressing rods 17 equal to the number of microswitches 7. Each second receiving space 14 has one pressing rod 17 distributed in it. Each pressing rod 17 is symmetrically rotated around the drive rod 3. The drive rod 3 is driven up and down by the bellows 18. Each pressing rod 17 synchronously presses or releases the button 19 on the microswitch 7. In this way, a single drive rod 3 drives multiple pressing rods 17 to perform linkage operation on multiple microswitches 7, causing each microswitch 7 to generate a trigger signal.

[0058] In order to ensure that the micro switch 7 is reliably triggered and that the triggering stroke of the micro switch 7 is relatively long, such as Figure 5 and Figure 6 As shown, the pressing direction of button 19 of micro switch 7 is perpendicular to the pressing rod (e.g., Figure 5 and Figure 6 In the middle, the pressing direction of the button 19 of the micro switch 7 is horizontal, and one end of the pressing rod 17 has a smoothly transitioned pressing head 20. Figure 5 and Figure 6 In the middle, the pressing head 20 is located at the lower end of the pressing rod 17, and the side of the pressing rod has a vertically arranged pressing holding surface 21. When the pressing rod moves downward, the smoothly transitioned side of the pressing rod contacts the button 19 of the micro switch 7, thereby pressing the button 19 of the micro switch 7 axially ( Figure 5 and Figure 6 The horizontal direction is specified, but in actual applications it is not limited to the horizontal direction (as it depends on the installation method of the density relay). The lower end of the pressing rod can be set as a ball head to ensure that the pressing rod presses the button 19 axially, so as not to damage the button 19 from the side.

[0059] This utility model's gas density relay micro-switch linkage triggering device has two preferred solutions: the first preferred solution, as follows: Figure 4 As shown, the linkage triggering device and the bellows 18 are sealed within the housing 22. The inner cavity of the housing 22 is filled with compensating gas, and the air inlet 23 of the bellows 18 is connected to the insulating gas chamber of the electrical equipment. The second preferred embodiment is also referred to... Figure 4 The bellows 18 is sealed and filled with compensating gas. The gas inlet 23 is located in the housing 22 and communicates with the inner cavity of the housing 22. That is, the assembly components, drive components and bellows 18 of the linkage triggering device are sealed in the housing 22. The inner cavity of the housing 22 is filled with the insulating gas chamber of the electrical equipment. The compensating gas in the bellows 18 can accurately compensate for deformation and improve signal accuracy.

[0060] like Figure 4 As shown, the housing 22 is also provided with a partition 24. The mounting bracket 1 is mounted on the partition 24 by a first screw. The main upright plate 9 of the mounting bracket 1 is provided with a relief groove 11. The first screw 12 is in the space of the relief groove 11 and can be installed from the relief groove 11 by a screwdriver.

[0061] As a first preferred embodiment of the gas density relay micro switch linkage triggering device of this utility model, such as Figure 4 As shown, the linkage triggering device also includes a housing 22. The micro switch linkage triggering device and the bellows 18 are both sealed in the inner cavity of the housing 22. The inner cavity of the housing 22 is sealed with compensating gas. The bellows 18 has an inflation port 23 for connecting to the insulating gas chamber of electrical equipment. The inflation port 23 is connected to the inner cavity of the housing 22.

[0062] As a second preferred embodiment of the gas density relay micro switch linkage triggering device of this utility model, it can be referred to Figure 4 The technical solution is as follows: the linkage triggering device also includes a housing 22, and the assembly components, drive components, and bellows 18 are all sealed in the inner cavity of the housing 22, together with... Figure 4 The difference lies in the sealing of the bellows 18, which contains a compensating gas. An inflation port 23 is located on the housing 22 and communicates with its inner cavity. The inflation port 23 connects to the insulating gas chamber of the electrical equipment. Thus, the inner cavity of the housing 22 is filled with the gas from the insulating gas chamber, while the compensating gas in the bellows 18 acts as a relative cavity. This compensates for the deformation of the bellows 18, making the deformation more accurate and improving the signal precision of the gas density relay.

[0063] Corresponding to the gas density relay micro switch linkage triggering device of this utility model, this utility model also provides a gas density relay, including the gas density relay micro switch linkage triggering device described in the above technical solution.

[0064] Based on the technical solutions of the above-described specific embodiments, the present invention provides a gas density relay and its micro-switch mounting bracket, assembly components, and linkage triggering device. Through the ingenious structural design of the mounting bracket, it enables the linkage triggering of each micro-switch, ensuring uniform force on the drive rod, reducing uneven wear of the drive components, and ensuring accurate triggering signals. Simultaneously, this design fully utilizes the space around the drive rod and the cylindrical housing characteristics of the density relay, resulting in a compact and rational product structure.

[0065] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0066] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A mounting bracket for a gas density relay micro switch, characterized in that: Includes a base plate, on which a through hole for a drive rod is provided, and around the through hole are multiple columns arranged around the axis of the through hole. Each column is provided with a positioning mounting surface, and the positioning mounting surface is provided with a threaded mounting hole for positioning and mounting a micro switch. The positioning mounting surface and the threaded mounting hole on each column are rotationally symmetrical about the axis of the through hole. The column has an L-shaped cross-section and includes a main column plate and a positioning column plate. The outer side of the positioning column plate is the positioning mounting surface. The positioning mounting surface of each column and the inner side of its adjacent main column plate form a first accommodating space. The inner sides of the main column plate and the positioning column plate of the same column form a corner-shaped second accommodating space.

2. The mounting bracket for the gas density relay micro switch according to claim 1, characterized in that: Each column is rotationally symmetrical about the axis of the through hole.

3. The mounting bracket for the gas density relay micro switch according to claim 1, characterized in that: The base plate and the columns are an integral structure.

4. The mounting bracket for the gas density relay micro switch according to claim 1, characterized in that: The bottom surface of the base plate is the machining reference surface, and the positioning mounting surface and the threaded mounting hole are machined relative to the machining reference surface.

5. The mounting bracket for the gas density relay micro switch according to claim 1, characterized in that: The back of the main support plate has clearance grooves for mounting screws.

6. An assembly assembly for a gas density relay micro switch, characterized in that: The mounting bracket for the gas density relay micro switch as described in claim 1 includes a micro switch mounted on the positioning mounting surface of each column, and a micro switch distributed in each first accommodating space, with each micro switch being rotationally symmetrical about the through hole axis.

7. The assembly of the gas density relay micro switch according to claim 6, characterized in that: The pressing direction of the button of the micro switch is perpendicular to the pressing rod. One end of the pressing rod has a smoothly transitioned pressing head, and the side of the pressing rod has a vertically arranged pressing and holding surface.

8. The assembly of the gas density relay micro switch according to claim 6, characterized in that: It also includes a housing, in which the assembly assembly, drive assembly and bellows are all sealed within the inner cavity of the housing, the bellows is sealed with compensating gas, and the housing has an inflation port for connecting to the insulating gas chamber of electrical equipment, the inflation port being connected to the inner cavity of the housing.

9. The assembly of the gas density relay micro switch according to claim 6, characterized in that: It also includes a housing, in which the assembly assembly, drive assembly and bellows are all sealed within the inner cavity of the housing, the inner cavity of the housing is sealed with a compensating gas, and the bellows has an inflation port for connecting to the insulating gas chamber of the electrical equipment, the inflation port being connected to the inner cavity of the housing.

10. A gas density relay micro-switch linkage triggering device, characterized in that: The assembly includes the gas density relay micro switch assembly of claim 6, and a drive assembly. The drive assembly includes a drive rod and a connecting frame. The drive rod passes through a through hole in the mounting frame base plate. The connecting frame is fixed to the top of the drive rod. The connecting frame is connected to a number of push rods equal to the number of micro switches. Each second receiving space contains one push rod. Each push rod is symmetrically rotated around the drive rod. The drive rod is driven up and down by a bellows. Each push rod synchronously presses or releases the button on the micro switch.

11. A gas density relay, characterized in that, Includes the gas density relay micro-switch linkage triggering device as described in claim 10.

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