A low voltage withdrawable switch cabinet

Abstract

The invention discloses a low-voltage withdrawable switch cabinet, including a switch cabinet assembly, including a cabinet body, a drawer, a mounting plate, a propulsion mechanism and an adjustment sleeve, wherein the drawer is plugged into the cabinet body, the mounting plate is arranged in the drawer, the propulsion mechanism is located at the top of the mounting plate, and the adjustment sleeve is arranged on one side of the propulsion mechanism; a locking assembly is arranged on one side of the propulsion mechanism, and includes a positioning plate, a locking block, a baffle, a supporting member, a pushing member, a rotating member, a positioning member and an extruding member. The beneficial effects of the invention are as follows: through the arrangement of the locking assembly, when the drawer is not pushed into place, the propulsion mechanism can be locked so that it cannot be rotated and adjusted, which can effectively avoid safety hazards such as false connection caused by operation before it is fully in place, reduce the risk of electrical accidents, and avoid the burning of connectors due to incorrect operation, extend the service life of the equipment, and reduce maintenance costs.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, in particular to a low-voltage drawable switch cabinet. Background Art

[0002] In the current power grid operation, security and defense systems are of vital importance. With the continuous development and complexity of the power system, higher requirements are placed on the reliability and safety of switchgear, especially in the low-voltage distribution system. As an important power control equipment, the safety performance of the withdrawable switchgear is directly related to the stable operation of the power grid. The withdrawable low-voltage cabinet is responsible for completing the control, protection, conversion and distribution of electric energy in the low-voltage power supply system. It is mainly composed of busbars, components (including disconnectors, circuit breakers, fuses, contactors and thermal relays, etc.), instruments and cabinets. When the push mechanism inside the drawer indicates the connected position, the primary and secondary circuits of the drawer are both in the connected state. When the push mechanism indicates the test position, the main circuit of the drawer is disconnected and the secondary circuit is connected. Only when the push mechanism indicates the separated When the drawer is in the closed position, the primary circuit and the secondary circuit of the drawer are separated, and the drawer can be pulled out at this time. When the drawer is retracted, if the drawer is not pushed to the bottom, the propulsion mechanism is operated to connect the primary circuit and the secondary circuit of the drawer. At this time, the main contacts of the drawer are in a virtual connection. If power is turned on at this time, the load will be brought, and the connectors of the drawer will soon burn out. Such situations are often encountered in daily work. Most of the withdrawable low-voltage cabinets in the prior art cannot limit the propulsion mechanism when the drawer has not been pushed to the bottom, so that the staff can operate incorrectly, and the virtual connection of the main contacts of the drawer will lead to dangerous situations such as arc generation and short circuit, threatening the safety of personnel and equipment, and even causing serious consequences such as fire. In addition, the burning of connectors will cause equipment failure, affect normal operation, increase maintenance costs and downtime. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing low-voltage withdrawable switch cabinet, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that most of the withdrawable low-voltage cabinets in the prior art are unable to limit the propulsion mechanism when the drawer has not been pushed to the bottom, which may cause the staff to operate incorrectly and the virtual connection of the drawer main contacts may lead to dangerous situations such as arcing and short circuit, threatening the safety of personnel and equipment, and even causing serious consequences such as fire. In addition, the burning of connectors may cause equipment failure, affect normal operation, and increase maintenance costs and downtime.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a low-voltage withdrawable switch cabinet, comprising a switch cabinet assembly, including a cabinet body, a drawer, a mounting plate, a propulsion mechanism and an adjustment sleeve, wherein the drawer is plugged into the cabinet body, the mounting plate is arranged in the drawer, the propulsion mechanism is located on the top of the mounting plate, and the adjustment sleeve is arranged on one side of the propulsion mechanism;

[0007] A locking assembly is arranged on one side of the propulsion mechanism, and includes a positioning plate, a locking block, a baffle, a support member, a pushing member, a rotating member, a positioning member and an extrusion member. The positioning plate is located below the adjustment sleeve, the locking block is fixed to the top of the positioning plate, the baffle is arranged on one side of the adjustment sleeve, the support member is located in the mounting plate, the pushing member is arranged in the support member, the rotating member is located on one side of the support member, the positioning member is arranged on the baffle, the extrusion member is located at the bottom of the baffle, and a slot corresponding to the locking block is opened on the adjustment sleeve.

[0008] As a preferred solution of the low-voltage withdrawable switch cabinet described in the present invention, the support member includes a support sleeve and a support rod, the support sleeve is fixed to the inner bottom wall of the mounting plate, the support rod is inserted into the support sleeve, and the bottom of the support rod is fixed to the positioning plate.

[0009] As a preferred solution of the low-voltage withdrawable switch cabinet of the present invention, the pushing member includes a first spring, and two ends of the first spring are respectively fixed to the support rod and the inner wall of the support sleeve.

[0010] As a preferred solution of the low-voltage withdrawable switch cabinet described in the present invention, the rotating part includes a rotating rod, a support frame and a force-bearing rod, the rotating rod is arranged on one side of the support rod, the support frame is fixed to the inner bottom wall of the mounting plate, the force-bearing rod is located at one end of the rotating rod, and the center of the rotating rod is rotatably connected to the support frame through a rotating shaft.

[0011] As a preferred solution of the low-voltage withdrawable switch cabinet described in the present invention, wherein: the rotating part also includes a connecting plate, a positioning shaft, a connecting shaft and a stabilizing frame, the connecting plate is fixed to one side of the support rod, the positioning shaft is fixed to one side of the connecting plate, a first sliding groove is provided on the rotating rod, the positioning shaft slides in the first sliding groove, the connecting shaft is fixed to the top of the force-bearing rod, a second sliding groove is provided on the rotating rod, the connecting shaft slides in the second sliding groove, the stabilizing frame is fixed in the mounting plate, and the force-bearing rod is movably connected to the stabilizing frame.

[0012] As a preferred solution of the low-voltage withdrawable switch cabinet described in the present invention, the positioning member includes a fixed shaft and a torsion spring, one end of the fixed shaft is fixed to the inner wall of the mounting plate, the baffle is rotatably connected to the outer side of the fixed shaft through a rotating shaft, and both ends of the torsion spring are respectively fixed to the fixed shaft and the baffle, and are sleeved on the outer side of the fixed shaft.

[0013] As a preferred solution of the low-voltage withdrawable switch cabinet described in the present invention, the extrusion member includes a push block, a fixed column and a support plate, the push block is located at the bottom of the baffle, the fixed column is fixed to the bottom of the push block, one side of the support plate is fixed to the positioning plate, and the bottom end of the fixed column is inserted into the support plate and movably connected to the support plate.

[0014] As a preferred solution of the low-voltage withdrawable switch cabinet of the present invention, the extrusion member further includes a second spring, and two ends of the second spring are respectively fixed to the push block and the support plate.

[0015] As a preferred solution of the low-voltage withdrawable switch cabinet of the present invention, the switch cabinet assembly further includes a locking mechanism and a handle, the locking mechanism is located in the drawer, and the handle is arranged on one side of the drawer.

[0016] As a preferred solution of the low-voltage withdrawable switch cabinet of the present invention, there are multiple slots, which are evenly distributed in a ring shape on the outside of the adjustment sleeve.

[0017] The beneficial effects of the present invention are as follows: through the setting of the locking component, when the drawer is not pushed into place, the pushing mechanism can be locked so that it cannot be rotated and adjusted, which can effectively avoid safety hazards such as false connection caused by operation before it is fully in place, reduce the risk of electrical accidents, and avoid the burning of connectors due to incorrect operation, thereby extending the service life of the equipment and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is the overall diagram of the low-voltage withdrawable switchgear.

[0020] Figure 2 This is the drawer structure diagram of the low-voltage withdrawable switch cabinet.

[0021] Figure 3 This is the structural diagram of the installation plate of the low-voltage withdrawable switchgear.

[0022] Figure 4 For low voltage withdrawable switch cabinet Figure 3 A partial enlarged structural diagram in the middle.

[0023] Figure 5 This is the structural diagram of the propulsion mechanism of the low-voltage withdrawable switchgear.

[0024] Figure 6 This is the structural diagram of the locking assembly of the low-voltage withdrawable switchgear.

[0025] In the figure: 100 switch cabinet assembly, 200 locking assembly, 104 propulsion mechanism, 101 cabinet, 102 drawer, 103 mounting plate, 105 adjustment sleeve, 201 positioning plate, 202 locking block, 203 baffle, 204 support member, 205 push member, 206 rotating member, 207 positioning member, 208 extrusion member, 105-1 slot, 2041 support sleeve, 2042 support rod, 2051 first spring, 2061 rotating rod, 2062 support frame, 2063 force rod, 2064 connecting plate, 2065 positioning shaft, 2066 connecting shaft, 2067 stabilizing frame, 2061-1 first slide slot, 2061-2 second slide slot, 2071 fixed shaft, 2072 torsion spring, 2081 push block, 2082 fixed column, 2083 support plate, 2084 second spring, 106 interlocking mechanism, 107 handle. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1-Figure 6 , which is the first embodiment of the present invention, provides a low-voltage withdrawable switch cabinet, including a switch cabinet assembly 100 and a locking assembly 200. The locking assembly 200 can lock the propulsion mechanism 104 when the drawer is not pushed into place, thereby avoiding the operator's erroneous operation that may cause the connector to burn out, which is crucial to the security and defense system of the power grid.

[0031] In the current power grid operation, security and defense systems are crucial. With the continuous development and complexity of the power system, higher requirements are placed on the reliability and safety of switchgear. Especially in low-voltage power distribution systems, withdrawable switchgear is an important power control equipment, and its safety performance is directly related to the stable operation of the power grid.

[0032] The switch cabinet assembly 100 includes a cabinet body 101, a drawer 102, a mounting plate 103, a propulsion mechanism 104 and an adjustment sleeve 105. The drawer 102 is plugged into the cabinet body 101, the mounting plate 103 is arranged in the drawer 102, the propulsion mechanism 104 is located on the top of the mounting plate 103, and the adjustment sleeve 105 is arranged on one side of the propulsion mechanism 104.

[0033] There are multiple drawers 102, which are evenly distributed in a straight line in the cabinet 101. The drawers 102 are used to install circuit components. The pushing mechanism 104 is used to connect and separate the primary circuit and the secondary circuit of the drawer 102. When the adjusting sleeve 105 is rotated, the pushing mechanism 104 can be operated to connect and separate the primary circuit and the secondary circuit of the drawer 102. This is the prior art and will not be elaborated in this solution. Those skilled in the art can understand the working principle.

[0034] A plug hole is provided on one side of the mounting plate 103 and the drawer 102, so that an operator can insert an adjusting wrench into the adjusting sleeve 105, so that the adjusting sleeve 105 can be rotated and adjusted by the adjusting wrench.

[0035] The locking assembly 200 is arranged on one side of the propulsion mechanism 104, and includes a positioning plate 201, a locking block 202, a baffle 203, a support member 204, a pushing member 205, a rotating member 206, a positioning member 207 and an extruding member 208. The positioning plate 201 is located below the adjustment sleeve 105, the locking block 202 is fixed to the top of the positioning plate 201, the baffle 203 is arranged on one side of the adjustment sleeve 105, the support member 204 is located in the mounting plate 103, the pushing member 205 is arranged in the support member 204, the rotating member 206 is located on one side of the support member 204, the positioning member 207 is arranged on the baffle 203, the extruding member 208 is located at the bottom of the baffle 203, and a slot 105-1 corresponding to the locking block 202 is opened on the adjustment sleeve 105.

[0036] The positioning plate 201 is arc-shaped and is used to drive the locking block 202 to move. When the drawer 102 is pulled out, the positioning plate 201 will move upward and contact the adjusting sleeve 105. At this time, the locking block 202 will engage with the card slot 105-1. At this time, the adjusting sleeve 105 can be locked through the cooperation of the two, so that the adjusting sleeve 105 cannot rotate, so that the adjusting sleeve 105 cannot be rotated and adjusted when the drawer 102 is pulled out, which can effectively avoid safety hazards such as false connection caused by operation before it is fully in place, reduce the risk of electrical accidents, and avoid the burning of connectors due to incorrect operation, extend the service life of the equipment, and reduce maintenance costs. This is of great significance to the security and defense system of the power grid.

[0037] The baffle 203 is semicircular and initially inclined. When the positioning plate 201 moves upward, the extrusion piece 208 drives the baffle 203 to rotate upward. When the operator's adjusting wrench is separated from the adjusting sleeve 105, the two baffles 203 will rotate to a vertical state and block the wrench slot of the adjusting sleeve 105, so that the adjusting wrench cannot be inserted into the adjusting sleeve 105, thereby further restricting the adjusting sleeve 105 to avoid the situation where the operator still forcibly rotates the adjusting wrench after encountering resistance during rotation after the adjusting wrench is inserted into the adjusting sleeve 105. It can also encourage the operator to develop correct operating habits and reduce uncertainties and potential problems caused by random operations, which helps to enhance the security and defense system of the power grid.

[0038] The support member 204 is provided to support and position the positioning plate 201. The push member 205 is provided to drive the positioning plate 201 to move upward when the drawer 102 is pulled outward. When the drawer 102 is pushed to a specified position, the positioning plate 201 is restricted by the rotating member 206, so that the positioning plate 201 cannot drive the locking block 202 to move upward. When the drawer 102 is pulled outward, the restriction on the positioning plate 201 can be released, so that the positioning plate 201 can drive the locking block 202 to move upward, and then the adjusting sleeve 105 can be locked and restricted, thereby improving the safety of the switch cabinet and providing reliable protection for the security and defense system of the power grid.

[0039] Example 2

[0040] Reference Figure 1-Figure 6 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0041] Specifically, the support member 204 includes a support sleeve 2041 and a support rod 2042 . The support sleeve 2041 is fixed to the inner bottom wall of the mounting plate 103 , the support rod 2042 is inserted into the support sleeve 2041 , and the bottom of the support rod 2042 is fixed to the positioning plate 201 .

[0042] The support sleeve 2041 and the support rod 2042 cooperate to support and position the positioning plate 201 to prevent it from being offset during movement, and the support rod 2042 drives the positioning plate 201 to move up and down.

[0043] Specifically, the pushing member 205 includes a first spring 2051 , and two ends of the first spring 2051 are respectively fixed to the support rod 2042 and the inner wall of the support sleeve 2041 .

[0044] When the drawer 102 is pulled outward, the first spring 2051 can apply an upward thrust to the support rod 2042 , and the support rod 2042 can drive the positioning plate 201 and the locking block 202 to move upward, thereby locking and restricting the adjustment sleeve 105 .

[0045] Furthermore, the first spring 2051 continuously applies an upward thrust to the support rod 2042 , so that the locking block 202 and the locking slot 105 - 1 can be more tightly engaged with each other, thereby preventing the two from being separated.

[0046] Specifically, the rotating member 206 includes a rotating rod 2061, a support frame 2062 and a force-bearing rod 2063. The rotating rod 2061 is arranged on one side of the support rod 2042, the support frame 2062 is fixed to the inner bottom wall of the mounting plate 103, the force-bearing rod 2063 is located at one end of the rotating rod 2061, and the center of the rotating rod 2061 is rotatably connected to the support frame 2062 through a rotating shaft.

[0047] One side of the bottom of the force-bearing rod 2063 is inclined, and the bottom penetrates to the bottom of the mounting plate 103 and is movably connected with the inside of the mounting plate 103 .

[0048] The bottom inclined surface of the force-bearing rod 2063 contacts the supporting platform supporting the drawer 102 inside the cabinet 101, and moves upward due to the squeezing force of the supporting platform, and drives one end of the rotating rod 2061 to rotate upward. At this time, the other end of the rotating rod 2061 will drive the supporting rod 2042 to move downward, so that the supporting rod 2042 can drive the positioning plate 201 to move downward, so that there is a certain distance between the positioning plate 201 and the adjustment sleeve 105.

[0049] When the drawer 102 is pulled out, the bottom of the force-bearing rod 2063 will be separated from the supporting platform of the drawer 102, and after the force-bearing rod 2063 loses the resistance to extrusion, the first spring 2051 can apply an upward thrust to the support rod 2042, and the support rod 2042 can drive the positioning plate 201 and the lock block 202 to move upward. When the support rod 2042 moves upward, it will drive one end of the rotating rod 2061 to rotate upward, and the other end to rotate downward, and drive the force-bearing rod 2063 to move downward, so that the bottom inclined surface of the force-bearing rod 2063 moves downward to a height that can contact the supporting platform inside the cabinet 101.

[0050] Specifically, the rotating member 206 also includes a connecting plate 2064, a positioning shaft 2065, a connecting shaft 2066 and a stabilizing frame 2067. The connecting plate 2064 is fixed to one side of the support rod 2042, the positioning shaft 2065 is fixed to one side of the connecting plate 2064, a first sliding groove 2061-1 is provided on the rotating rod 2061, the positioning shaft 2065 slides in the first sliding groove 2061-1, the connecting shaft 2066 is fixed to the top of the force-bearing rod 2063, a second sliding groove 2061-2 is provided on the rotating rod 2061, the connecting shaft 2066 slides in the second sliding groove 2061-2, the stabilizing frame 2067 is fixed in the mounting plate 103, and the force-bearing rod 2063 is movably connected with the stabilizing frame 2067.

[0051] One end of the rotating rod 2061 is hinged to one side of the support rod 2042 through the cooperation of the connecting plate 2064, the positioning shaft 2065 and the first sliding groove 2061-1, so that when one end of the rotating rod 2061 moves downward, it can drive the support rod 2042 to move downward. There is a certain distance between the end of the rotating rod 2061 and the support rod 2042, which can avoid the end of the rotating rod 2061 from contacting the support rod 2042 and being restricted when moving upward, and the first sliding groove 2061-1 has enough length for the movement of the positioning shaft 2065.

[0052] The connecting shaft 2066 cooperates with the second sliding groove 2061 - 2 to connect the end of the rotating rod 2061 to the force-bearing rod 2063 , so that when the force-bearing rod 2063 moves upward, it can drive one end of the rotating rod 2061 to move upward.

[0053] The stabilizing frame 2067 is used to position the force-bearing rod 2063 to prevent it from being offset during movement.

[0054] Specifically, the positioning member 207 includes a fixed shaft 2071 and a torsion spring 2072. One end of the fixed shaft 2071 is fixed to the inner wall of the mounting plate 103. The baffle 203 is rotatably connected to the outer side of the fixed shaft 2071 through a rotating shaft. The two ends of the torsion spring 2072 are respectively fixed to the fixed shaft 2071 and the baffle 203, and are sleeved on the outer side of the fixed shaft 2071.

[0055] There are two groups of positioning members 207, corresponding to two baffles 203 respectively. The fixed shaft 2071 is used to support and position the baffle 203 to prevent it from falling during rotation. The torsion spring 2072 applies a torsional force to the baffle 203. When the baffle 203 is released from the restriction in the vertical state, it can be driven by the torsion spring 2072 to rotate to the initial tilted state and separate from the slot of the adjustment sleeve 105, so that the adjusting wrench can be inserted into the adjusting sleeve 105.

[0056] Example 3

[0057] Reference Figure 1-Figure 6 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0058] Specifically, the extrusion member 208 includes a push block 2081, a fixed column 2082 and a support plate 2083. The push block 2081 is located at the bottom of the baffle 203, the fixed column 2082 is fixed to the bottom of the push block 2081, one side of the support plate 2083 is fixed to the positioning plate 201, and the bottom end of the fixed column 2082 is inserted into the support plate 2083 and is movably connected to the support plate 2083.

[0059] There are two groups of extrusion pieces 208, corresponding to the two baffles 203 respectively. The top of the push block 2081 is arc-shaped and fits with the bottom of the baffle 203. The support plate 2083 is L-shaped, and the push block 2081 is supported by the cooperation of the fixed column 2082 and the support plate 2083.

[0060] When the positioning plate 201 moves upward, it will drive the support plate 2083 to move upward. When the support plate 2083 moves upward, it will apply a thrust to the second spring 2084 and push the push block 2081 upward through the second spring 2084, so that the push block 2081 pushes the baffle 203 to rotate upward. When the adjusting wrench has not been pulled out from the adjusting sleeve 105 and the baffle 203 contacts the adjusting wrench, the baffle 203 is unable to continue to move due to resistance. When the positioning plate 201 continues to move upward, it can drive the support plate 2083 to compress the second spring 2084. When the adjusting wrench is pulled out from the adjusting sleeve 105, the second spring 2084 can be used to block the slot of the adjusting sleeve 105, thereby restricting the adjusting sleeve 105, so that when the drawer 102 is not pushed to the specified position, the adjusting wrench cannot be inserted into the adjusting sleeve 105, and the propulsion mechanism 104 cannot be operated.

[0061] Specifically, the extruding member 208 further includes a second spring 2084 , and two ends of the second spring 2084 are respectively fixed to the push block 2081 and the support plate 2083 .

[0062] Specifically, the switch cabinet assembly 100 further includes a locking mechanism 106 and a handle 107 . The locking mechanism 106 is located in the drawer 102 , and the handle 107 is disposed on one side of the drawer 102 .

[0063] The handle 107 is used to control the inside of the drawer 102, and the interlocking mechanism 106 is used to lock the drawer 102 to prevent the drawer 102 from opening due to misoperation. This is the prior art and will not be elaborated in this solution. Those skilled in the art can clearly understand the working principle.

[0064] Specifically, there are multiple slots 105 - 1 , which are evenly distributed on the outer side of the adjustment sleeve 105 in a ring shape.

[0065] By providing a plurality of slots 105 - 1 , after the adjusting sleeve 105 is rotated to any angle, the locking block 202 can be engaged with the slot 105 - 1 when moving upward.

[0066] When in use, when the drawer 102 is pulled outward, the bottom of the force-bearing rod 2063 will be separated from the supporting platform of the drawer 102, and after the force-bearing rod 2063 loses the resistance to extrusion, the first spring 2051 can apply an upward thrust to the support rod 2042, and the support rod 2042 can drive the positioning plate 201 locking block 202 to move upward, and the locking block 202 will engage with the card slot 105-1. At this time, the adjustment sleeve 105 can be locked through the cooperation of the two, so that the adjustment sleeve 105 cannot rotate, so that the adjustment sleeve 105 cannot be rotated and adjusted when the drawer 102 is pulled out, which can effectively avoid safety hazards such as false connection caused by operation before it is fully in place, reduce the risk of electrical accidents, and avoid the burning of connectors due to incorrect operation, extend the service life of the equipment, and reduce maintenance costs.

[0067] At the same time, when the positioning plate 201 moves upward, it will drive the support plate 2083 to move upward. When the support plate 2083 moves upward, it will apply a thrust to the second spring 2084, and push the push block 2081 upward through the second spring 2084, so that the push block 2081 pushes the baffle plate 203 to rotate upward. When the adjusting wrench has not been pulled out from the inside of the adjusting sleeve 105, and the baffle plate 203 contacts the adjusting wrench, the baffle plate 203 is unable to move further due to resistance. When the positioning plate 201 continues to move upward, it can drive the support plate 2083 to compress the second spring 2084. When the adjusting wrench is pulled out from the inside of the adjusting sleeve 105 When the drawer 102 is pushed out, the slot of the adjusting sleeve 105 can be blocked by the second spring 2084, so that the adjusting sleeve 105 can be restricted, so that when the drawer 102 is not pushed to the specified position, the adjusting wrench cannot be inserted into the adjusting sleeve 105, and then the propulsion mechanism 104 cannot be operated, thereby further restricting the adjusting sleeve 105, avoiding the situation where the operator will forcefully rotate the adjusting sleeve 105 after encountering resistance when rotating after the adjusting wrench is inserted into the adjusting sleeve 105, and can encourage the operator to develop correct operating habits, reduce uncertainty and potential problems caused by random operation, which is helpful to enhance the security and defense system of the power grid.

[0068] At the same time, when the support rod 2042 moves upward, it will drive one end of the rotating rod 2061 to rotate upward and the other end to rotate downward, and drive the force-bearing rod 2063 to move downward, so that the bottom inclined surface of the force-bearing rod 2063 moves downward to a height that can contact the supporting platform inside the cabinet 101.

[0069] When the drawer 102 is inserted into the cabinet 101 and inserted to the specified position, the bottom inclined surface of the force-bearing rod 2063 contacts the support platform inside the cabinet 101 that supports the drawer 102, and moves upward due to the squeezing force of the support platform, and drives one end of the rotating rod 2061 to rotate upward. At this time, the other end of the rotating rod 2061 will drive the support rod 2042 to move downward, so that the support rod 2042 can drive the positioning plate 201 to move downward, and the positioning plate 201 can drive the locking block 202 to separate from the slot 105-1, so as to release the restriction on the adjustment sleeve 105. At this time, the adjusting wrench can be inserted into the adjusting sleeve 105, so as to operate the propulsion mechanism 104, thereby avoiding the operator's incorrect operation, which will cause the connector to burn out, which is crucial to the security and defense system of the power grid.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A low voltage withdrawable switch cabinet, characterized in that: include, A switch cabinet assembly (100), comprising a cabinet body (101), a drawer (102), a mounting plate (103), a propulsion mechanism (104), and an adjustment sleeve (105), wherein the drawer (102) is plugged into the cabinet body (101), the mounting plate (103) is arranged in the drawer (102), the propulsion mechanism (104) is located on the top of the mounting plate (103), and the adjustment sleeve (105) is arranged on one side of the propulsion mechanism (104); A locking assembly (200) is arranged on one side of the propulsion mechanism (104), comprising a positioning plate (201), a locking block (202), a baffle (203), a support member (204), a pushing member (205), a rotating member (206), a positioning member (207) and an extruding member (208), wherein the positioning plate (201) is located below the adjustment sleeve (105), the locking block (202) is fixed to the top of the positioning plate (201), the baffle (203) is arranged on one side of the adjustment sleeve (105), the support member (204) is located in the mounting plate (103), the pushing member (205) is arranged in the support member (204), and the rotating member (206) is located on the support member (204). On one side, the positioning member (207) is arranged on the baffle (203), the extrusion member (208) is located at the bottom of the baffle (203), the adjustment sleeve (105) is provided with a slot (105-1) corresponding to the locking block (202), the support member (204) comprises a support sleeve (2041) and a support rod (2042), the support sleeve (2041) is fixed to the inner bottom wall of the mounting plate (103), the support rod (2042) is inserted into the support sleeve (2041), and the bottom of the support rod (2042) is fixed to the positioning plate (201); the pushing member (205) comprises a first spring (2051), two ends of the first spring (2051) are respectively connected to the support The support rod (2042) is fixed to the inner wall of the support sleeve (2041); the rotating member (206) comprises a rotating rod (2061), a support frame (2062) and a force-bearing rod (2063); the rotating rod (2061) is arranged on one side of the support rod (2042); the support frame (2062) is fixed to the inner bottom wall of the mounting plate (103); the force-bearing rod (2063) is located at one end of the rotating rod (2061); the center of the rotating rod (2061) is rotatably connected to the support frame (2062) via a rotating shaft; the rotating member (206) further comprises a connecting plate (2064), a positioning shaft (2065), a connecting shaft (2066) and a stabilizing frame (2067); the connecting plate (20 64) is fixed to one side of the support rod (2042), the positioning shaft (2065) is fixed to one side of the connecting plate (2064), a first sliding groove (2061-1) is provided on the rotating rod (2061), the positioning shaft (2065) slides in the first sliding groove (2061-1), the connecting shaft (2066) is fixed to the top of the force-bearing rod (2063), a second sliding groove (2061-2) is provided on the rotating rod (2061), the connecting shaft (2066) slides in the second sliding groove (2061-2), the stabilizing frame (2067) is fixed in the mounting plate (103), and the force-bearing rod (2063) is movably connected to the stabilizing frame (2067);The positioning member (207) comprises a fixed shaft (2071) and a torsion spring (2072); one end of the fixed shaft (2071) is fixed to the inner wall of the mounting plate (103); the baffle plate (203) is rotatably connected to the outer side of the fixed shaft (2071) via a rotating shaft; and two ends of the torsion spring (2072) are respectively fixed to the fixed shaft (2071) and the baffle plate (203), and are sleeved on the outer side of the fixed shaft (2071). ; 2. The low-voltage withdrawable switch cabinet according to claim 1, characterized in that: The extrusion member (208) comprises a push block (2081), a fixing column (2082) and a support plate (2083); the push block (2081) is located at the bottom of the baffle (203); the fixing column (2082) is fixed to the bottom of the push block (2081); one side of the support plate (2083) is fixed to the positioning plate (201); the bottom end of the fixing column (2082) is inserted into the support plate (2083) and is movably connected to the support plate (2083).

3. The low-voltage withdrawable switch cabinet according to claim 2, characterized in that: The extrusion member (208) further comprises a second spring (2084), and two ends of the second spring (2084) are respectively fixed to the push block (2081) and the support plate (2083).

4. The low-voltage withdrawable switch cabinet according to claim 3, characterized in that: The switch cabinet assembly (100) further comprises a locking mechanism (106) and a handle (107), wherein the locking mechanism (106) is located in the drawer (102), and the handle (107) is arranged on one side of the drawer (102).

5. The low-voltage withdrawable switch cabinet according to any one of claims 1 to 4, characterized in that: There are a plurality of the clamping slots (105-1), which are evenly distributed in a ring shape on the outside of the adjustment sleeve (105).

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