A fixed support tool for pole-mounted switch

Abstract

The utility model relates to pole switch assembly technical field, especially pole switch fixed support frock, including installation support, with symmetrical first installation department and second installation department, rotation support mechanism, including respectively vertical rotation fixed on the first installation department first rotation support mechanism and vertical rotation fixed on the second installation department second rotation support mechanism, and the both ends of pole switch are respectively with first rotation support mechanism and second rotation support mechanism movable fixed, limiting mechanism, fixed in one side of first rotation support mechanism and / or second rotation support mechanism, this frock simple structure, easy operation, realize pole switch free state under assembly and use state simulation, adopt pure mechanical control, avoid the problem that electrical element long -term use is easy to age failure. Ensure the reliability of pole switch assembly debugging, guarantee the product quality. Again reduced production and manufacturing, maintenance cost, improved production efficiency, can realize batch production.

Description

Technical Field

[0001] This utility model relates to the field of pole-mounted switch assembly technology, and in particular to a pole-mounted switch fixing support tool. Background Technology

[0002] Nowadays, pole-mounted switches are commonly used in the power industry. They are a type of safety switch used on utility poles to ensure electrical safety. Their main function is to isolate high voltage in the circuit. To facilitate the assembly of pole-mounted switches, a pole-mounted switch workbench is usually used for auxiliary assembly.

[0003] The commonly used fixed support fixtures for pole-mounted switches on the market are complex in structure, have limited performance, and are expensive. During assembly and commissioning, they have a high failure rate and short maintenance cycles, making it difficult to meet the reliability and stability requirements of pole-mounted switch commissioning.

[0004] Meanwhile, the tooling is prone to jamming after repeated and frequent operation, and the electrically controlled components on the tooling may overheat and age, affecting the assembly and performance debugging of the pole-mounted switch assembly line. If the fault is not eliminated in time, it will not only lead to production interruption, but may also affect key assembly and debugging processes, causing slow-change quality defects in the product. When put into use later, it may even cause serious accidents such as large-scale power outages and fires, resulting in significant economic losses and personal injury. Utility Model Content

[0005] To address at least one of the aforementioned technical problems, this utility model proposes a fixed support fixture for a pole-mounted switch, which solves the problems of complex structure, inconvenient operation, and high failure rate of pole-mounted switch assembly and debugging fixtures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pole-mounted switch fixing support fixture, comprising:

[0008] A mounting bracket is provided to support the assembly of the pole-mounted switch. The mounting bracket has a first mounting part and a second mounting part arranged symmetrically, and there is space between the first mounting part and the second mounting part for the pole-mounted switch to be installed and rotated.

[0009] A rotating support mechanism is used to fix and rotate the column-mounted switch. The rotating support mechanism includes a first rotating support mechanism that is vertically rotatably fixed to the first mounting part and a second rotating support mechanism that is vertically rotatably fixed to the second mounting part. The two ends of the column-mounted switch are movably fixed to the first rotating support mechanism and the second rotating support mechanism, respectively.

[0010] A limiting mechanism is fixed to one side of the first rotating support mechanism and / or the second rotating support mechanism, and is used to limit or release the first rotating support mechanism and the mounting bracket by means of telescopic movement.

[0011] Preferably, the first rotating support mechanism includes:

[0012] The first rotating shaft is rotatably mounted on the first mounting portion;

[0013] The first rotating plate is fixedly disposed at one end of the first rotating shaft near the second mounting part, and the center of the first rotating plate is located on the central axis of the first rotating shaft.

[0014] A first support plate is fixedly disposed on the side of the first rotating plate away from the first rotating shaft, and the first support plate is perpendicular to the first rotating plate; the first support plate is provided with mounting holes to facilitate the fixing of the column switch, and the central axis of the first support plate coincides with the central axis of the first rotating shaft.

[0015] Preferably, the second rotating support mechanism includes:

[0016] The second rotating shaft is rotatably mounted on the second mounting part, and the central axis of the second rotating shaft coincides with that of the first rotating shaft.

[0017] The second rotating plate is fixedly disposed at one end of the second rotating shaft near the first mounting part. The center of the second rotating plate is located on the central axis of the second rotating shaft and / or the first rotating shaft, and is parallel to the first rotating plate.

[0018] The second support plate is fixedly disposed on the side of the second rotating plate away from the second rotating shaft, and the second support plate is perpendicular to the second rotating plate; the second support plate is provided with mounting holes to facilitate the fixing of the column switch, the central axis of the second support plate coincides with the central axis of the second rotating shaft, and is at the same height as the first support plate.

[0019] Preferably, the limiting mechanism includes:

[0020] A sleeve is perpendicularly fixed to the first rotating plate and / or the second rotating plate. The sleeve has a stepped hole inside and a fixing plate is provided on the outer periphery of the sleeve. The fixing plate is used to fix the sleeve to the mounting bracket.

[0021] A spring is compressed and disposed within the large hole of the stepped hole;

[0022] A telescopic rod, wherein the spring is sleeved on the outside of the telescopic rod, and one end of the telescopic rod is provided with a limiting part for limiting the compression of the spring, the outer diameter of the limiting part being equal to the inner diameter of the large hole; the first rotating plate and / or the second rotating plate are arranged in a ring array with a plurality of limiting holes that cooperate with and lock the telescopic rod;

[0023] A pull rod is fixed to the end of the telescopic rod away from the limiting part. The central axis of the pull rod coincides with the central axis of the telescopic rod. The diameter of the pull rod is less than or equal to the inner diameter of the small hole of the stepped hole, and part of it is located outside the sleeve.

[0024] A limiting plate is fixed to the end of the pull rod away from the limiting part. By pulling the limiting plate, the telescopic rod is disengaged from the limiting hole, thereby releasing the limiting effect on the first rotating support mechanism and / or the second rotating support mechanism. Under the action of the spring force, the telescopic rod extends into the limiting hole, restoring the limiting effect on the first rotating support mechanism and / or the second rotating support mechanism.

[0025] Preferably, the limiting hole is an oblong hole.

[0026] Preferably, a first reinforcing plate is provided between the first rotating plate and the first supporting plate, and a second reinforcing plate is provided between the second rotating plate and the second supporting plate.

[0027] Preferably, the first rotating plate is a circular plate and the second rotating plate is a rectangular plate. The first rotating plate and the second rotating plate are located inside the first mounting part and the second mounting part, respectively, and have a mounting gap that facilitates rotation.

[0028] Preferably, the assembly fixture further includes bearing assemblies that are identical in structure and symmetrically fixed on the first mounting portion and the second mounting portion, the bearing assembly comprising:

[0029] A bearing housing is fixed to the upper surface of the first mounting part and the second mounting part, and the bearing housing has a bearing hole;

[0030] A rolling bearing is fixedly installed inside the bearing hole, and the first rotating shaft and the second rotating shaft pass through and are fixed inside the rolling bearing;

[0031] A limiting bushing is used to restrict the first rotating shaft and the second rotating shaft from moving axially. The limiting bushing is sleeved on the first rotating shaft and the second rotating shaft and is located outside the rolling bearing.

[0032] Fasteners are fitted and fixed to the ends of the first and second rotating shafts away from the first and second rotating plates.

[0033] Preferably, both the first rotating shaft and the second rotating shaft are stepped shafts, and the limiting bushing has a stepped frustum. The first rotating shaft and the second rotating shaft are fixed in the axial direction by the stepped shaft and the stepped frustum.

[0034] Preferably, the mounting bracket includes:

[0035] The bottom frame is a rectangular frame;

[0036] A vertical frame is used to fix the first mounting part and the second mounting part, and the vertical frame is symmetrically fixed at both ends of the bottom frame;

[0037] A reinforcing rib is fixedly installed on the inner side of the connection between the bottom frame and the vertical frame.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] This invention uses a first and a second rotating support mechanism to fix the pole-mounted switch onto the mounting bracket. This allows the switch to be in a free state during assembly, ensuring that components are not affected by external forces other than their own weight. This guarantees optimal assembly clearances and improves the mechanical performance and product quality of the pole-mounted switch. When debugging is required, the first and second rotating support mechanisms rotate the switch 180° to simulate actual installation conditions, and a limit mechanism securely locks the switch in the debugging position. Simulating actual working conditions facilitates the identification of potential safety hazards, problems, and weaknesses, allowing for a comprehensive evaluation of the switch's performance and improving its reliability after debugging.

[0040] This device features a simple structure and easy operation, allowing for free switching between fixed and rotating states of the tooling. It simulates the assembly and usage of the pole-mounted switch in its free state. Furthermore, its purely mechanical control avoids the problem of aging and failure of electrical components over long-term use. This ensures the reliability of the pole-mounted switch assembly and debugging, guaranteeing that key parameters and critical processes are controlled within required ranges. This reduces potential hazards, defects, and malfunctions, ensuring product quality and improving reliability. It also lowers manufacturing and maintenance costs, increases production efficiency, and enables mass production. Attached Figure Description

[0041] Figure 1 A perspective view of a column-mounted switch fixing support fixture;

[0042] Figure 2 This is a front view of a column-mounted switch fixing support fixture;

[0043] Figure 3This is a perspective view of the first rotating support mechanism in this utility model;

[0044] Figure 4 This is an assembly drawing of the first rotating support mechanism and the bearing assembly in this utility model;

[0045] Figure 5 This is a perspective view of the second rotating support mechanism in this utility model;

[0046] Figure 6 This is an assembly drawing of the second rotating support mechanism and the bearing assembly in this utility model;

[0047] Figure 7 This is a perspective view of the limiting mechanism in this utility model;

[0048] Figure 8 This is an exploded view of the limiting mechanism in this utility model;

[0049] Figure 9 This is a perspective view of the bearing assembly in this utility model;

[0050] Figure 10 This is an exploded view of the bearing assembly in this utility model;

[0051] Figure 11 This is an assembly diagram of the switch on the central column of this utility model;

[0052] Figure 12 This is a diagram showing the debugging status of the switch on the central column of this utility model.

[0053] In the diagram: 10. Mounting bracket; 101. Base frame; 102. Vertical frame; 103. Reinforcing rib; 104. First mounting section; 105. Second mounting section;

[0054] 20. First rotating support mechanism; 201. First rotating shaft; 202. First rotating plate; 2021. Limiting hole; 203. First support plate; 204. First reinforcing plate;

[0055] 30. Second rotating support mechanism; 301. Second rotating shaft; 302. Second rotating plate; 303. Second support plate; 304. Second reinforcing plate;

[0056] 40. Limiting mechanism; 401. Sleeve; 402. Fixing plate; 403. Spring; 404. Telescopic rod; 4041. Limiting part; 405. Pull rod; 406. Limiting plate;

[0057] 50. Bearing assembly; 501. Bearing housing; 502. Rolling bearing; 503. Limiting bushing; 504. Fastener;

[0058] 60. Pole-mounted switch. Detailed Implementation

[0059] To enable those skilled in the art to better understand the technical solutions in this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this utility model, and not all of the embodiments in this utility model.

[0060] Please refer to Figures 1-12 As shown, a pole-mounted switch fixing support fixture includes:

[0061] Mounting bracket 10 is used to provide support for the assembly of pole-mounted switch 60. Mounting bracket 10 has a first mounting part 104 and a second mounting part 105 symmetrically arranged, and there is space between the first mounting part 104 and the second mounting part 105 for the pole-mounted switch 60 to be installed and rotated.

[0062] A rotating support mechanism is used to fix and rotate the column switch 60. The rotating support mechanism includes a first rotating support mechanism 20 that is vertically and rotatably fixed on the first mounting part 104 and a second rotating support mechanism 30 that is vertically and rotatably fixed on the second mounting part 105. The two ends of the column switch 60 are movably fixed to the first rotating support mechanism 20 and the second rotating support mechanism 30, respectively.

[0063] The limiting mechanism 40 is fixed to one side of the first rotating support mechanism 20 and / or the second rotating support mechanism 30, and is used to limit or release the first rotating support mechanism 20 and the mounting bracket 10 by means of telescopic movement.

[0064] In this embodiment, the pole-mounted switch 60 is fixed to the mounting bracket 10 via the first rotating support mechanism 20 and the second rotating support mechanism 30. This allows the pole-mounted switch 60 to be in a free state during assembly, ensuring that the components are not affected by external forces other than their own weight. This guarantees optimal assembly clearance and improves the mechanical performance and product quality of the pole-mounted switch 60. When the pole-mounted switch 60 needs to be debugged, the first rotating support mechanism 20 and the second rotating support mechanism 30 rotate the switch 60 180° to simulate the actual installation conditions. The limiting mechanism 40 then stably locks the pole-mounted switch 60 in the debugging position. By simulating actual working conditions, it is easy to identify potential safety hazards, problems, and weaknesses under working conditions. This allows for a comprehensive evaluation of the performance of the pole-mounted switch 60, thereby improving the reliability of the switch after debugging.

[0065] Please refer to Figure 1 and Figure 2As shown, the mounting bracket 10 includes a bottom frame 101, wherein the bottom frame 101 is a rectangular frame in this embodiment; a vertical frame 102 for fixing the first mounting part 104 and the second mounting part 105, the vertical frame 102 being symmetrically fixed at both ends of the bottom frame 101; and a reinforcing rib 103 fixedly disposed on the inner side of the connection between the bottom frame 101 and the vertical frame 102.

[0066] It should be noted that the supporting frame formed by the bottom frame 101 and the vertical frame 102 serves to provide a stable platform for the assembly and debugging of the column-mounted switch 60. In this embodiment, the first mounting part 104 and the second mounting part 105 are rectangular plates horizontally fixed to the upper part of the mounting bracket 10.

[0067] It is understandable that, in order to accommodate the assembly and debugging of pole-mounted switches 60 of different specifications, the distance between the vertical frames 102 in this embodiment is adjustable. For example, the bottom frame 101 is set to telescopic and / or the vertical frames 102 are set to telescopic to accommodate the length and height of pole-mounted switches 60 of different specifications.

[0068] Please refer to Figure 3 and Figure 4 As shown, in this embodiment, the first rotating support mechanism 20 includes: a first rotating shaft 201, which is rotatably mounted on the first mounting part 104; and a first rotating plate 202, which is fixedly mounted on one end of the first rotating shaft 201 near the second mounting part 105, with the center of the first rotating plate 202 located on the central axis of the first rotating shaft 201.

[0069] The first support plate 203 is fixedly disposed on the side of the first rotating plate 202 away from the first rotating shaft 201. The first support plate 203 is perpendicular to the first rotating plate 202. The first support plate 203 is provided with mounting holes for easy fixing of the column switch 60. The central axis of the first support plate 203 coincides with the central axis of the first rotating shaft 201.

[0070] Please refer to Figure 5 and Figure 6 As shown, the second rotating support mechanism 30 includes: a second rotating shaft 301, rotatably mounted on the second mounting portion 105, the second rotating shaft 301 coinciding with the central axis of the first rotating shaft 201; and a second rotating plate 302, fixedly mounted on one end of the second rotating shaft 301 near the first mounting portion 104, the center of the second rotating plate 302 located on the central axis of the second rotating shaft 301 and / or the first rotating shaft 201, and parallel to the first rotating plate 202.

[0071] The second support plate 303 is fixedly disposed on the side of the second rotating plate 302 away from the second rotating shaft 301. The second support plate 303 is perpendicular to the second rotating plate 302. The second support plate 303 is provided with mounting holes for easy fixing of the column-mounted switch 60. The central axis of the second support plate 303 coincides with the central axis of the second rotating shaft 301 and is at the same height as the first support plate 203.

[0072] It should be noted that the structures of the first rotating support mechanism 20 and the second rotating support mechanism 30 in this embodiment can be the same or different. For example, in this embodiment, the first rotating plate 202 is a circular plate, and the second rotating plate 302 is a rectangular plate. Obviously, the first rotating plate 202 and the second rotating plate 302 can both be rectangular plates, circular plates, or other shapes or irregular shapes.

[0073] In this embodiment, the first support plate 203 and the second support plate 303 are at the same height. It should be understood that the side of the first support plate 203 and the second support plate 303 used to install the pole-mounted switch 60 is on the same plane, which can ensure the convenience and stability of the installation of the pole-mounted switch 60.

[0074] In order to facilitate the rotation of the column switch 60, in this embodiment, the first rotating plate 202 and the second rotating plate 302 are located inside the first mounting part 104 and the second mounting part 105, respectively, and have a mounting gap that facilitates rotation.

[0075] To improve the robustness of the first rotating support mechanism 20 and the second rotating support mechanism 30, in this embodiment, a first reinforcing plate 204 is provided between the first rotating plate 202 and the first support plate 203, and a second reinforcing plate 304 is provided between the second rotating plate 302 and the second support plate 303. The first reinforcing plate 204 and the second reinforcing plate 304 improve the overall robustness of the mechanism, ensuring the safety and reliability of the device during use.

[0076] Please refer to Figure 7 and Figure 8 As shown, the aforementioned limiting mechanism 40 includes:

[0077] Sleeve 401 is vertically fixed to the first rotating plate 202 and / or the second rotating plate 302. Sleeve 401 has a stepped hole inside and a fixing plate 402 is provided on the outer periphery of sleeve 401. The fixing plate 402 is used to fix to the mounting bracket 10.

[0078] Spring 403 is compressed and installed inside the large hole of the stepped hole;

[0079] The telescopic rod 404 has a spring 403 sleeved on its outside. One end of the telescopic rod 404 is provided with a limiting part 4041 for limiting the compression spring 403. The outer diameter of the limiting part 4041 is equal to the inner diameter of the large hole. The first rotating plate 202 and / or the second rotating plate 302 are arranged in a ring array with a plurality of limiting holes 2021 that cooperate with and lock the telescopic rod 404.

[0080] Pull rod 405 is fixed to the end of telescopic rod 404 away from the limiting part 4041. The central axis of pull rod 405 coincides with the central axis of telescopic rod 404. The diameter of pull rod 405 is less than or equal to the inner diameter of the small hole of the stepped hole, and part of it is located outside the sleeve 401.

[0081] The limiting plate 406 is fixed to the end of the pull rod 405 away from the limiting part 4041. By pulling the limiting plate 406, the telescopic rod 404 is disengaged from the limiting hole 2021, releasing the limitation on the first rotating support mechanism 20 and / or the second rotating support mechanism 30. Under the elastic force of the spring 403, the telescopic rod 404 extends into the limiting hole 2021, restoring the limitation on the first rotating support mechanism 20 and / or the second rotating support mechanism 30.

[0082] It should be noted that in this embodiment, the initial state of the spring 403 is a compressed state. That is, the spring 403 applies a spring force to the telescopic rod 404 toward the first rotating plate 202 and / or the second rotating plate 302, so that the part of the telescopic rod 404 extending out of the sleeve 401 is at least partially located within the limiting hole 2021 to lock the first rotating plate 202 and / or the second rotating plate 302 and prevent rotation during assembly or debugging. At the same time, under the restriction of the limiting plate 406, the telescopic rod 404 will not disengage from the sleeve 401. When it is necessary to contact the limit, the operator only needs to pull the limiting plate 406 to disengage the telescopic rod 404 from the limiting hole 2021, rotate the column switch 60 to the appropriate position, release the limiting plate 406, and under the action of the spring 403, the telescopic rod 404 re-inserts into the limiting hole 2021 to achieve position locking.

[0083] Please refer to Figure 11 and Figure 12 As shown, in order to ensure that the pole-mounted switch 60 is in a free state during assembly and in a vertical state during debugging, the limiting hole 2021 in this embodiment is provided at least directly above and below the first support plate 203 and / or the second support plate 303, and corresponds to the position of the telescopic rod 404.

[0084] Understandably, the limiting mechanism 40 can be installed on one or both sides of the mounting bracket 10. In actual operation, it can be designed according to needs. When installed on one side, only one person is needed to complete the rotation operation of releasing and restoring the limit. When installed on both sides, two people are needed to complete the rotation operation of releasing and restoring the limit. However, it is obvious that the stability of both sides is better than that of one side, and the stability of the tooling in the assembly and adjustment state is better.

[0085] It should be noted that in this embodiment, the limiting hole 2021 is an oblong hole. Compared with a circular hole, the oblong hole allows for installation errors of the limiting hole 2021 in the non-rotational direction during alignment.

[0086] Please refer to Figure 9 and Figure 10 As shown, to facilitate the installation of the first rotating support mechanism 20 and the second rotating support mechanism 30, the assembly fixture in this embodiment also includes bearing assemblies 50 with identical structures and symmetrically fixed on the first mounting portion 104 and the second mounting portion 105. The bearing assembly 50 includes:

[0087] The bearing housing 501 is fixed to the upper surface of the first mounting part 104 and the second mounting part 105, and the bearing housing 501 has a bearing hole.

[0088] A rolling bearing 502 is fixedly installed in a bearing hole, and a first rotating shaft 201 and a second rotating shaft 301 are fixedly installed inside the rolling bearing 502.

[0089] The limiting bushing 503 is used to restrict the first rotating shaft 201 and the second rotating shaft 301 from moving axially. The limiting bushing 503 is sleeved on the first rotating shaft 201 and the second rotating shaft 301 and is located outside the rolling bearing 502.

[0090] Fastener 504 is sleeved and fixed to one end of the first rotating shaft 201 and the second rotating shaft 301 away from the first rotating plate 202 and the second rotating plate 302.

[0091] This embodiment reduces the friction of the first rotating shaft 201 and the second rotating shaft 301 during rotation by setting the bearing assembly 50, thereby improving the flexibility and smoothness of rotation. This makes the rotation of the column switch 60 more stable, reduces wear, and extends the service life of the tooling.

[0092] It should be noted that in this embodiment, both the first rotating shaft 201 and the second rotating shaft 301 are stepped shafts, and the limiting bushing 503 has a stepped frustum. The first rotating shaft 201 and the second rotating shaft 301 are fixed in the axial direction by the stepped shaft and the stepped frustum. This effectively prevents the first rotating shaft 201 and the second rotating shaft 301 from moving in the axial direction during the use of the tooling, thus improving the overall stability of the tooling.

[0093] The working process of this tooling is as follows:

[0094] like Figure 11 As shown, when the column switch 60 is first assembled, the two ends of the outer casing are first installed on the first support plate 203 and the second support plate 303 respectively, so that the column switch 60 is in a free state (only subject to its own weight). At this time, the telescopic rod 404 extends to the limiting hole 2021 under the action of the spring 403, limiting and fixing the first rotating plate 202 and / or the second rotating plate 302.

[0095] like Figure 12 As shown, after the internal components of the pole-mounted switch 60 are installed and debugged, the pole-mounted switch 60 needs to be rotated 180° to simulate the actual installation conditions. At this time, simply pull the limit plate 406 to disengage the telescopic rod 404 from the limit hole 2021. After the pole-mounted switch 60 rotates 180°, release the limit plate 406. Under the elastic force of the spring 403, the telescopic rod 404 re-inserts into the limit hole 2021, thus achieving position locking again.

[0096] This device features a simple structure and easy operation, allowing for free switching between fixed and rotating states of the tooling. It simulates the assembly and usage of the pole-mounted switch 60 in its free state. Furthermore, its purely mechanical control avoids the problem of aging and failure of electrical components over long-term use. This ensures the reliability of the pole-mounted switch 60's assembly and debugging, guaranteeing that its key parameters and critical processes are controlled within required ranges. This reduces potential hazards, defects, and malfunctions, ensuring product quality and improving reliability. It also lowers manufacturing and maintenance costs and increases production efficiency.

[0097] The above description is a specific implementation of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A fixture for fixing and supporting a column-mounted switch, characterized in that, include: Mounting bracket (10) is used to provide support for the assembly of column switch (60). The mounting bracket (10) has a first mounting part (104) and a second mounting part (105) arranged symmetrically. There is space between the first mounting part (104) and the second mounting part (105) for the column switch (60) to be installed and rotated. A rotating support mechanism is used to fix and rotate the column switch (60). The rotating support mechanism includes a first rotating support mechanism (20) that is vertically and rotatably fixed on the first mounting part (104) and a second rotating support mechanism (30) that is vertically and rotatably fixed on the second mounting part (105). The two ends of the column switch (60) are movably fixed to the first rotating support mechanism (20) and the second rotating support mechanism (30) respectively. The limiting mechanism (40) is fixed to one side of the first rotating support mechanism (20) and / or the second rotating support mechanism (30) and is used to limit or release the first rotating support mechanism (20) and the mounting bracket (10) by telescopic means.

2. The column-mounted switch fixing support fixture according to claim 1, characterized in that, The first rotating support mechanism (20) includes: The first rotating shaft (201) is rotatably mounted on the first mounting part (104); The first rotating plate (202) is fixedly disposed at one end of the first rotating shaft (201) near the second mounting part (105), and the center of the first rotating plate (202) is located on the central axis of the first rotating shaft (201); The first support plate (203) is fixedly disposed on the side of the first rotating plate (202) away from the first rotating shaft (201). The first support plate (203) is perpendicular to the first rotating plate (202). The first support plate (203) is provided with mounting holes to facilitate the fixing of the column switch (60). The central axis of the first support plate (203) coincides with the central axis of the first rotating shaft (201).

3. The column-mounted switch fixing support fixture according to claim 2, characterized in that, The second rotating support mechanism (30) includes: The second rotating shaft (301) is rotatably mounted on the second mounting part (105), and the central axis of the second rotating shaft (301) coincides with that of the first rotating shaft (201); The second rotating plate (302) is fixedly disposed at one end of the second rotating shaft (301) near the first mounting part (104). The center of the second rotating plate (302) is located on the central axis of the second rotating shaft (301) and / or the first rotating shaft (201) and is parallel to the first rotating plate (202). The second support plate (303) is fixedly disposed on the side of the second rotating plate (302) away from the second rotating shaft (301). The second support plate (303) is perpendicular to the second rotating plate (302). The second support plate (303) is provided with mounting holes to facilitate the fixing of the column switch (60). The central axis of the second support plate (303) coincides with the central axis of the second rotating shaft (301) and is at the same height as the first support plate (203).

4. The column-mounted switch fixing support fixture according to claim 3, characterized in that, The limiting mechanism (40) includes: A sleeve (401) is vertically fixed to the first rotating plate (202) and / or the second rotating plate (302). The sleeve (401) has a stepped hole inside. A fixing plate (402) is provided on the outer periphery of the sleeve (401). The fixing plate (402) is used to fix the sleeve (401) to the mounting bracket (10). Spring (403) is compressed and disposed within the large hole of the stepped hole; The telescopic rod (404) has a spring (403) sleeved on its outside. One end of the telescopic rod (404) is provided with a limiting part (4041) for limiting and compressing the spring (403). The outer diameter of the limiting part (4041) is equal to the inner diameter of the large hole. The first rotating plate (202) and / or the second rotating plate (302) are arranged in a ring array with a plurality of limiting holes (2021) that cooperate with and lock the telescopic rod (404). A pull rod (405) is fixed to one end of the telescopic rod (404) away from the limiting part (4041). The central axis of the pull rod (405) coincides with the central axis of the telescopic rod (404). The diameter of the pull rod (405) is less than or equal to the inner diameter of the small hole of the stepped hole, and part of it is located outside the sleeve (401). The limiting plate (406) is fixed to the end of the pull rod (405) away from the limiting part (4041). By pulling the limiting plate (406), the telescopic rod (404) is disengaged from the limiting hole (2021), thereby releasing the limitation on the first rotating support mechanism (20) and / or the second rotating support mechanism (30). Under the elastic force of the spring (403), the telescopic rod (404) extends into the limiting hole (2021), restoring the limitation on the first rotating support mechanism (20) and / or the second rotating support mechanism (30).

5. The column-mounted switch fixing support fixture according to claim 4, characterized in that, The limiting hole (2021) is an oblong hole.

6. The column-mounted switch fixing support fixture according to claim 5, characterized in that, A first reinforcing plate (204) is provided between the first rotating plate (202) and the first supporting plate (203), and a second reinforcing plate (304) is provided between the second rotating plate (302) and the second supporting plate (303).

7. The column-mounted switch fixing support fixture according to claim 6, characterized in that, The first rotating plate (202) is a circular plate, and the second rotating plate (302) is a rectangular plate. The first rotating plate (202) and the second rotating plate (302) are located inside the first mounting part (104) and the second mounting part (105) respectively, and have a mounting gap that facilitates rotation.

8. The column-mounted switch fixing support fixture according to claim 7, characterized in that, The column-mounted switch fixing support fixture also includes bearing assemblies (50) that are identical in structure and symmetrically fixed on the first mounting part (104) and the second mounting part (105). The bearing assembly (50) includes: A bearing housing (501) is fixed to the upper surface of the first mounting part (104) and the second mounting part (105), and the bearing housing (501) has a bearing hole; A rolling bearing (502) is fixedly disposed in the bearing hole, and the first rotating shaft (201) and the second rotating shaft (301) are fixedly disposed in the rolling bearing (502). A limiting bushing (503) is used to restrict the first rotating shaft (201) and the second rotating shaft (301) from moving axially. The limiting bushing (503) is sleeved on the first rotating shaft (201) and the second rotating shaft (301) and is located outside the rolling bearing (502). Fastener (504) is sleeved and fixed at one end of the first rotating shaft (201) and the second rotating shaft (301) away from the first rotating plate (202) and the second rotating plate (302).

9. The column-mounted switch fixing support fixture according to claim 8, characterized in that, Both the first rotating shaft (201) and the second rotating shaft (301) are stepped shafts. The limiting bushing (503) has a stepped frustum. The first rotating shaft (201) and the second rotating shaft (301) are fixed in the axial direction by the stepped shaft and the stepped frustum.

10. The column-mounted switch fixing support fixture according to any one of claims 1-9, characterized in that, The mounting bracket (10) includes: The bottom frame (101) is a rectangular frame; A vertical frame (102) is used to fix the first mounting part (104) and the second mounting part (105). The vertical frame (102) is symmetrically fixed at both ends of the bottom frame (101). A reinforcing rib (103) is fixedly installed on the inner side of the connection between the bottom frame (101) and the vertical frame (102).

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