High-protection explosion-proof surface structure for power distribution device

Abstract

The utility model relates to the technical field of power distribution devices, and discloses a high-protection explosion-proof surface structure for a power distribution device, which comprises a shell and a top cover, one side of the top end of the shell is hinged with the top cover, one side of the top cover is provided with an upper locking assembly, one side of the top of the shell is provided with a lower locking assembly, and the upper locking assembly is matched with the lower locking assembly for use. The shell and the top cover are both made of explosion-proof steel, the upper locking assembly and the lower locking assembly are used in cooperation, tight connection between the shell and the top cover can be ensured through the structure, and therefore external dust, moisture, explosive gas and other harmful substances are effectively prevented from invading, and due to the fact that the shell and the top cover are both made of the explosion-proof steel, the explosion-proof steel is not prone to being damaged. The material has excellent strength and toughness and can bear certain explosion pressure without being damaged, so that under the extreme conditions of explosion and the like, the structure can effectively isolate an explosion source and prevent explosion from affecting surrounding areas, and safety of personnel and equipment is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to power distribution device technical field, specifically, relate to a high protection explosion -proof surface structure for power distribution device. BACKGROUND

[0002] Power distribution device refers to the control and protection circuit in power system, and the general term of various electric appliances for the distribution, conversion and measurement of electric energy. These devices usually include switching equipment, fuse, mutual inductor, measuring instrument, protection device, etc.

[0003] The existing device has some drawbacks in the using process, for example: in the traditional power distribution device, the top cover is generally fixed in the shell by screw, but the power distribution device will produce certain vibration in the running process due to the change of current, the fluctuation of load and the influence of external environmental factors (such as wind, rain, snow, etc.), which will reduce the friction between the screw and the fixing part, and then the screw will gradually loosen, and then affect the overall performance and stability of the power distribution device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a high protection explosion -proof surface structure for power distribution device, solves the problem of unstable connection between the top cover and the shell caused by screw loosening due to vibration.

[0005] The utility model provides the following technical scheme: a high protection explosion -proof surface structure for power distribution device, including shell and top cover, the shell top one side is hinged with top cover, the top cover one side is provided with upper locking assembly, the shell top one side is provided with lower locking assembly, the upper locking assembly is used in cooperation with lower locking assembly, the shell and top cover are all made of explosion -proof steel.

[0006] As the preferred of the above technical scheme, the upper locking assembly includes the mounting plate fixed on the side wall of the top cover, the connecting plate is fixedly connected to the lower end surface of the mounting plate, and the clamping head is fixedly connected to the center of the lower end surface of the connecting plate.

[0007] As the preferred of the above technical scheme, the lower locking assembly includes the bearing plate fixed on the side wall of the top of the shell, the mounting port is arranged in the center of the upper end surface of the bearing plate, the first clasp ring and the second clasp ring are symmetrically arranged on the both sides of the mounting port, the rotating shaft is fixedly connected to the bottom of the first clasp ring and the second clasp ring, the rotating shaft is fixed to the inner side wall of the mounting port at both ends, the reset spring is fixedly connected to the lower end surface of the first clasp ring and the second clasp ring, and the bottom end of the reset spring is fixed to the upper end surface of the bearing plate.

[0008] As the preferred technical scheme of the above, the damping rotating shaft is fixedly connected to the four corners of the upper end face of the load bearing plate, the movable end of the damping rotating shaft is fixedly connected with the direction adjusting rod, and the direction adjusting rod is fixedly sleeved with the abutting plate for fixing the first clamping ring and the second clamping ring on the outer wall of the top of the direction adjusting rod.

[0009] As the preferred technical scheme of the above, the surface of the shell and the top cover is coated with phosphating liquid.

[0010] As the preferred technical scheme of the above, the clamping joint and the connecting plate are integrally formed.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] In the utility model, the top cover is covered to the shell, the clamping joint gradually approaches the installation port, and the clamping joint first contacts the first clamping ring or the second clamping ring with the approach, the contact pushes the clamping ring to rotate around the rotating shaft, and the reset spring is compressed, when the clamping joint is completely in place, the two clamping rings are tightly clamped to the clamping joint under the action of the reset spring, a firm locking structure is formed, the clamping ring can be tightly attached to the clamping joint through the elastic force of the reset spring, thereby reducing noise and abrasion caused by looseness or vibration, finally, the design also makes the dismounting and mounting process of the top cover relatively simple and convenient, and a user only needs to exert certain external force to overcome the elastic force of the reset spring, and the top cover is easily opened or closed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a first perspective three-dimensional structural schematic view of a high-protection explosion-proof surface structure for a power distribution device.

[0014] Figure 2 It is a partial explosion structural schematic view of a high-protection explosion-proof surface structure for a power distribution device.

[0015] Figure 3 It is a second perspective three-dimensional structural schematic view of a high-protection explosion-proof surface structure for a power distribution device.

[0016] In the drawing: 1, shell; 11, top cover; 2, upper locking assembly; 21, mounting plate; 22, connecting plate; 23, clamping joint; 3, lower locking assembly; 31, load bearing plate; 32, installation port; 33, first clamping ring; 34, second clamping ring; 35, rotating shaft; 36, reset spring; 41, damping rotating shaft; 42, direction adjusting rod; 43, abutting plate. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0018] EMBODIMENT

[0019] As Figures 1-3 The utility model provides a kind of technical scheme: a kind of high protection explosion-proof surface structure for power distribution device, including shell 1 and top cover 11, the surface of shell 1 and top cover 11 is all coated with phosphating liquid, the main role of phosphating liquid is to form a layer of phosphating film on explosion-proof surface, to improve the corrosion resistance and wear resistance of explosion-proof surface, this layer of phosphating film can effectively protect the explosion-proof surface of power distribution device, prevent its failure due to corrosion or wear, to ensure the normal operation and safety of equipment, shell 1 top end side is hinged with top cover 11, top cover 11 side is provided with upper locking assembly 2, shell 1 top side is provided with lower locking assembly 3, upper locking assembly 2 is used in cooperation with lower locking assembly 3, shell 1 and top cover 11 are made of explosion-proof steel, by the cooperation of upper locking assembly 2 and lower locking assembly 3, the structure can ensure the close connection between shell 1 and top cover 11, to effectively prevent the invasion of harmful substances such as external dust, moisture and explosive gas, since shell 1 and top cover 11 are made of explosion-proof steel, this material has excellent strength and toughness, can withstand certain explosion pressure without being damaged. Therefore, in extreme cases such as explosion, the structure can effectively isolate explosion source, prevent explosion from affecting surrounding area, to protect the safety of personnel and equipment.

[0020] As one embodiment in the present embodiment, as Figure 1 And Figure 2As shown, the upper locking assembly 2 comprises a mounting plate 21 fixed on the side wall of the top cover 11, the lower end surface of the mounting plate 21 is fixedly connected with a connecting plate 22, the lower end surface of the connecting plate 22 is fixedly connected with a clamping joint 23 at the center, the clamping joint 23 is an integral molding structure with the connecting plate 22, the lower locking assembly 3 comprises a bearing plate 31 fixed on the top side wall of the shell 1, the upper end surface of the bearing plate 31 is provided with a mounting hole 32 at the center, the first clamping ring 33 and the second clamping ring 34 are symmetrically arranged on both sides of the mounting hole 32, the bottom of the first clamping ring 33 and the second clamping ring 34 penetrates and is fixedly connected with a rotating shaft 35, the rotating shaft 35 is fixed on the inner side wall of the mounting hole 32 at both ends, the lower end surface of the first clamping ring 33 and the second clamping ring 34 is fixedly connected with a return spring 36, the bottom end of the return spring 36 is fixed on the upper end surface of the bearing plate 31, and the specific use process is as follows: when it is needed to close and lock the top cover 11 on the shell 1, the operator will first cover the top cover 11 to the shell 1, so that the clamping joint 23 gradually approaches the mounting hole 32, and as the clamping joint 23 approaches, it will first contact the first clamping ring 33 or the second clamping ring 34, which will push the clamping ring to rotate around the rotating shaft 35 and compress the return spring 36, when the clamping joint 23 is completely in place, both clamping rings will tightly clamp the clamping joint 23 under the action of the return spring 36, forming a firm locking structure, if it is needed to open the top cover 11, the operator pushes the two clamping rings to rotate around the rotating shaft 35 and release the clamping joint 23, once the clamping joint 23 is released, the top cover 11 can be opened, thereby allowing the power distribution device to be maintained and overhauled.

[0021] As an embodiment in the embodiment, as shown in the figure, Figure 2 As shown, the upper locking assembly 2 comprises a mounting plate 21 fixed on the side wall of the top cover 11, the lower end surface of the mounting plate 21 is fixedly connected with a connecting plate 22, the lower end surface of the connecting plate 22 is fixedly connected with a clamping joint 23 at the center, the clamping joint 23 is an integral molding structure with the connecting plate 22, the lower locking assembly 3 comprises a bearing plate 31 fixed on the top side wall of the shell 1, the upper end surface of the bearing plate 31 is provided with a mounting hole 32 at the center, the first clamping ring 33 and the second clamping ring 34 are symmetrically arranged on both sides of the mounting hole 32, the bottom of the first clamping ring 33 and the second clamping ring 34 penetrates and is fixedly connected with a rotating shaft 35, the rotating shaft 35 is fixed on the inner side wall of the mounting hole 32 at both ends, the lower end surface of the first clamping ring 33 and the second clamping ring 34 is fixedly connected with a return spring 36, the bottom end of the return spring 36 is fixed on the upper end surface of the bearing plate 31, and the specific use process is as follows: when it is needed to close and lock the top cover 11 on the shell 1, the operator will first cover the top cover 11 to the shell 1, so that the clamping joint 23 gradually approaches the mounting hole 32, and as the clamping joint 23 approaches, it will first contact the first clamping ring 33 or the second clamping ring 34, which will push the clamping ring to rotate around the rotating shaft 35 and compress the return spring 36, when the clamping joint 23 is completely in place, both clamping rings will tightly clamp the clamping joint 23 under the action of the return spring 36, forming a firm locking structure, if it is needed to open the top cover 11, the operator pushes the two clamping rings to rotate around the rotating shaft 35 and release the clamping joint 23, once the clamping joint 23 is released, the top cover 11 can be opened, thereby allowing the power distribution device to be maintained and overhauled.

[0022] The above embodiment is only used to illustrate the technical scheme of the utility model, but not to limit it.

Claims

1. A high-protection explosion-proof surface structure for a power distribution device, comprising a housing (1) and a top cover (11), wherein the top cover (11) is hinged to one side of the top end of the housing (1), characterized in that: The top cover (11) is provided with an upper locking component (2) on one side, and the outer shell (1) is provided with a lower locking component (3) on one side of the top. The upper locking component (2) and the lower locking component (3) are used together. The outer shell (1) and the top cover (11) are both made of explosion-proof steel.

2. The high-protection explosion-proof surface structure for power distribution equipment according to claim 1, characterized in that: The upper locking assembly (2) includes a mounting plate (21) fixed to the side wall of the top cover (11), a connecting plate (22) fixedly connected to the lower end face of the mounting plate (21), and a snap connector (23) fixedly connected to the center of the lower end face of the connecting plate (22).

3. The high-protection explosion-proof surface structure for power distribution equipment according to claim 2, characterized in that: The lower locking assembly (3) includes a load-bearing plate (31) fixed to the top side wall of the outer shell (1). An installation port (32) is provided at the center of the upper surface of the load-bearing plate (31). A first retaining ring (33) and a second retaining ring (34) are symmetrically arranged on both sides of the installation port (32). A rotating shaft (35) is fixed through the bottom of the first retaining ring (33) and the second retaining ring (34). Both ends of the rotating shaft (35) are fixed to the inner side wall of the installation port (32). A return spring (36) is fixedly connected to the lower surface of the first retaining ring (33) and the second retaining ring (34). The bottom end of the return spring (36) is fixed to the upper surface of the load-bearing plate (31).

4. The high-protection explosion-proof surface structure for power distribution equipment according to claim 3, characterized in that: Damping shafts (41) are fixedly connected to the four corners of the upper surface of the load-bearing plate (31). A steering rod (42) is fixedly connected to the movable end of the damping shaft (41). A contact plate (43) for fixing the first retaining ring (33) and the second retaining ring (34) is fixedly sleeved on the top outer wall of the steering rod (42).

5. The high-protection explosion-proof surface structure for power distribution equipment according to claim 1, characterized in that: Phosphating solution is applied to the surfaces of both the outer shell (1) and the top cover (11).

6. The high-protection explosion-proof surface structure for power distribution equipment according to claim 2, characterized in that: The card connector (23) and the connecting plate (22) are integrally formed.

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