Shell mounting device for miniature circuit breaker

Abstract

The utility model discloses a shell installation device for a miniature circuit breaker, and relates to the technical field of circuit breaker installation, the shell installation device comprises a protection mechanism and a clamping mechanism, the clamping mechanism comprises two adjusting screw rods, the outer walls of the tops and the bottoms of the adjusting screw rods are sleeved with movable seats, and the movable seats are connected with the protection mechanism. And traction plates are installed on the inner sides of one ends of the two movable seats at the same end, clamping plates are arranged at one ends of the two traction plates at the same end, and supporting plates are arranged at the opposite ends of the two clamping plates. The two movable seats at the same end move oppositely or oppositely through rotation of the adjusting lead screw, the two clamping plates can clamp and fix miniature circuit breaker shells of different sizes, the supporting pins can support the bottoms of the adjacent supporting plates, the supporting plates can stably support the miniature circuit breaker shells, and the working efficiency of the miniature circuit breaker shells is improved. Therefore, the protection mechanism can stably install and protect the miniature circuit breaker housing.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker installation, in particular to a shell installation device for a miniature circuit breaker. Background Art

[0002] Circuit breaker refers to a mechanical switch that can connect, carry and disconnect current under normal circuit conditions, and can also connect, carry for a certain time and disconnect current under specified abnormal circuit conditions. Miniature circuit breakers are the most widely used terminal protection devices in building electrical terminal distribution devices. They are used for short circuit, overload, overvoltage and other protection of single-phase and three-phase below 125A, including single-pole 1P, two-pole 2P, three-pole 3P, four-pole 4P and other four types.

[0003] The invention relates to a shell mounting device for a miniature circuit breaker, the installation frame comprising a mounting frame, screws are installed at both left and right ends of the mounting frame, and clamping blocks are fixedly installed at the upper and lower ends of the screw ends, the screws and the inner ends of the clamping blocks are fixedly connected to the clamping plates, the upper and lower ends of the clamping plates are respectively slidably connected to the first slide rail and the second slide rail, the second slide rail is embedded in the upper end surface of the fixed plate, the lower end surface of the fixed plate is provided with a hole groove, the hole groove clamps an elastic ball, the elastic ball is fixedly installed on the upper end surface of the limiting plate, a top block is fixedly installed in the middle part of the lower end of the limiting plate, and fixing blocks are fixedly installed at the left and right ends of the outer wall of the top block, the upper end of the fixing block is fixedly connected to the plug rod, and the upper end of the plug rod is inserted in the fixing ring. The shell mounting device for a miniature circuit breaker can meet the placement of miniature circuit breakers of different specifications and improve the overall shock absorption.

[0004] The prior art has the following deficiencies: when installing the shell of a miniature circuit breaker, the existing shell installation device can only be adjusted according to the width of the shell, but cannot be adjusted according to the height of the miniature circuit breaker shell, so that the installation device cannot install and protect miniature circuit breaker shells of different heights, which will affect the adaptability of the installation device. At the same time, the miniature circuit breaker shell that is smaller than the height of the inner wall of the installation device is prone to movement inside the installation device, which will affect the stability of the miniature circuit breaker shell after installation.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a housing installation device for a miniature circuit breaker, which can clamp and fix the housings of miniature circuit breakers of different sizes by adjusting the rotation of the screw rod so that the two movable seats at the same end move relative to or away from each other, and at the same time, the support pins penetrate the adjacent fixing holes and support and fix the bottoms of the adjacent support plates, so that the support plates can stably support the housings of the miniature circuit breaker, so as to solve the above-mentioned deficiencies in the technology.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solution: a housing installation device for a miniature circuit breaker, comprising a protection mechanism, and further comprising:

[0008] The clamping mechanism is arranged on both sides of the interior of the protection mechanism and is used to clamp and fix the housing of the miniature circuit breaker;

[0009] The clamping mechanism comprises two adjusting screw rods, which are respectively arranged on the inner walls at both ends of the protective mechanism, and the tops of the two adjusting screw rods are fixedly installed with adjusting knobs, and the outer walls of the top and bottom of the adjusting screw rods are threadedly sleeved with movable seats, and the inner sides of one end of the two movable seats at the same end are rotatably installed with traction plates, and the ends of the two traction plates at the same end away from the movable seats are provided with clamping plates;

[0010] A traction spring is arranged at the top of the inner wall at one end opposite to the two clamping plates, a support plate is arranged at the bottom of the two traction springs, and a support pin for fixing the support plate is arranged on the inner wall of the two clamping plates.

[0011] Preferably, the protection mechanism comprises a fixed shell, and the inner walls at both ends of the fixed shell are provided with mounting grooves, and the inner walls of the mounting grooves are rotatably connected to the adjacent adjusting screw rods.

[0012] Preferably, the top and bottom of the inner wall of the mounting groove are respectively movably connected to the outer wall of the adjacent movable seat, and a fixed seat is rotatably installed on the outer side of one end of the two traction plates at the same end away from the movable seat, and the end of the fixed seat away from the traction plate is fixedly connected to the outer wall of the adjacent clamping plate.

[0013] Preferably, inner walls at opposite ends of the two clamping plates are each provided with a movable groove, and the top of the inner wall of the movable groove is fixedly connected to the adjacent traction spring.

[0014] Preferably, a slider is fixedly mounted on the outer wall of one end of the support plate, the top of the slider is connected to the adjacent fixed wheel at the bottom of the traction spring, and the outer wall of the slider is movably connected to the adjacent inner wall of the movable groove.

[0015] Preferably, a plurality of fixing holes are opened at one end of the inner wall of the movable groove, the inner wall of the fixing hole is threadedly connected to the outer wall of the adjacent support pin, and one end of the support pin away from the fixing hole is movably connected to the bottom of the adjacent support plate.

[0016] Preferably, the height dimension of the inner wall of the fixed shell is the same as the height dimension of the clamping plate, and the width dimension of the clamping plate is the same as the width dimension of the support plate.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. The adjusting screw is rotated by rotating the adjusting knob, so that the two movable seats at the same end move relative to or away from each other, and the distance between the two clamping plates can be adjusted under the elastic force of the traction plate, so that the two clamping plates can clamp and fix the housings of miniature circuit breakers of different sizes. At the same time, the support plate can support the bottom of the housing of the miniature circuit breaker under the elastic force of the traction spring, and the support pin penetrates the adjacent fixing holes and supports and fixes the bottom of the adjacent support plate, so that the support plate can stably support the housing of the miniature circuit breaker, and the protective mechanism can stably install and protect the housing of the miniature circuit breaker, so as to avoid the housing of the miniature circuit breaker being exposed to the outside and damaged during use, and to extend the service life of the housing of the miniature circuit breaker;

[0019] 2. The movement of the movable seat can be limited by the mounting groove, so that the movable seat remains stable during the movement, and the traction plate can stably push the clamping plate to move, so that the two clamping plates can stably clamp the miniature circuit breaker housing. At the same time, the movable groove can limit the movement of the slider, so that the support plate remains stable during the movement, and the support plate can stably support the bottom of the miniature circuit breaker housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a front vertical sectional view of the utility model.

[0023] Figure 3 It is a three-dimensional structural diagram of the protection mechanism of the utility model.

[0024] Figure 4 It is an exploded view of the three-dimensional structure of the clamping mechanism of the utility model.

[0025] Description of reference numerals:

[0026] 1. Protective mechanism; 101. Fixed housing; 102. Mounting slot;

[0027] 2. Clamping mechanism; 201. Adjusting screw rod; 202. Adjusting knob; 203. Movable seat; 204. Pulling plate; 205. Fixed seat; 206. Clamping plate; 207. Movable groove; 208. Pulling spring; 209. Sliding block; 210. Support plate; 211. Fixing hole; 212. Support pin. DETAILED DESCRIPTION

[0028] The utility model provides Figure 1 A housing installation device for a miniature circuit breaker shown includes a protection mechanism 1 and further includes:

[0029] The clamping mechanism 2 is arranged on both sides of the interior of the protection mechanism 1 and is used to clamp and fix the housing of the miniature circuit breaker.

[0030] In order to conveniently fix the housing of the miniature circuit breaker, Figure 2 and Figure 4 As shown, the clamping mechanism 2 includes two adjusting screw rods 201, and the two adjusting screw rods 201 are respectively arranged on the inner walls at both ends of the protective mechanism 1, and the tops of the two adjusting screw rods 201 are fixedly installed with adjusting knobs 202, and the outer walls of the top and bottom of the adjusting screw rods 201 are threadedly sleeved with movable seats 203, and the inner sides of one end of the two movable seats 203 at the same end are rotatably installed with traction plates 204, and the ends of the two traction plates 204 at the same end away from the movable seats 203 are provided with clamping plates 206, and the rotation of the adjusting knob 202 causes the adjacent adjusting screw rods 201 to rotate, so that the two movable seats 203 at the same end move relative to or away from each other, and then under the traction action of the traction plate 204, the distance between the two clamping plates 206 can be adjusted, so that the clamping plates 206 can clamp the miniature circuit breaker housings of different sizes.

[0031] In order to make the clamping mechanism 2 adapt to the fixing of the miniature circuit breaker housings of different heights, Figure 2 and Figure 4 As shown, traction springs 208 are provided on the top of the inner walls at the opposite ends of the two clamping plates 206, and support plates 210 are provided at the bottoms of the two traction springs 208. The inner walls of the two clamping plates 206 are provided with support pins 212 for fixing the support plates 210. The support plates 210 can support the housing of the miniature circuit breaker under the elastic force of the traction springs 208, and the support pins 212 can support and fix the support plates 210, so that the support plates 210 can stably support the miniature circuit breaker.

[0032] In order to keep the movable seat 203 stable during the movement, Figure 2-4 As shown, the protective mechanism 1 includes a fixed shell 101, and the inner walls of both ends of the fixed shell 101 are provided with mounting grooves 102. The inner wall of the mounting groove 102 is rotatably connected to the adjacent adjusting screw rod 201, and the top and bottom of the inner wall of the mounting groove 102 are respectively movably connected to the outer wall of the adjacent movable seat 203. The two traction plates 204 at the same end are rotatably installed with a fixed seat 205 on the outer side of one end away from the movable seat 203, and the end of the fixed seat 205 away from the traction plate 204 is fixedly connected to the outer wall of the adjacent clamping plate 206. The mounting groove 102 can limit the movement of the adjacent movable seat 203, and the outer side threads of the top and bottom of the adjusting screw rod 201 are in opposite directions, so that the adjusting screw rod 201 can stably drive the movable seat 203 to move, and then under the traction action of the traction plate 204, the distance between the two clamping plates 206 can be stably adjusted.

[0033] In order to keep the support plate 210 stable during the movement, Figure 2 and Figure 4 As shown, movable grooves 207 are provided on the inner walls at opposite ends of the two clamping plates 206, and the top of the inner wall of the movable groove 207 is fixedly connected to the adjacent traction spring 208. A slider 209 is fixedly installed on the outer wall of one end of the support plate 210, and the top of the slider 209 is connected to the fixed wheel at the bottom of the adjacent traction spring 208. The outer wall of the slider 209 is movably connected to the inner wall of the adjacent movable groove 207. The movable groove 207 can limit the movement of the slider 209, so that the support plate 210 remains stable during the movement.

[0034] In order to keep the support plate 210 stable on the outer wall of the clamping plate 206, as shown in FIG. Figure 2 and Figure 4 As shown, a plurality of fixing holes 211 are provided at one end of the inner wall of the movable groove 207, the inner wall of the fixing hole 211 is threadedly connected to the outer wall of the adjacent support pin 212, and the end of the support pin 212 away from the fixing hole 211 is movably connected to the bottom of the adjacent support plate 210, the fixing hole 211 can fix the support pin 212, and the support plate 210 can be supported and fixed by the support pin 212, so that the support plate 210 can stably support the housing of the miniature circuit breaker.

[0035] In order to ensure that the clamping mechanism 2 can be stably fixed inside the protective mechanism 1, as shown in FIG. Figure 2 As shown, the height dimension of the inner wall of the fixed shell 101 is the same as the height dimension of the clamping plate 206, and the width dimension of the clamping plate 206 is the same as the width dimension of the support plate 210. The fixed shell 101 can limit the movement of the clamping plate 206 so that the clamping plate 206 can move stably along the inner wall of the fixed shell 101.

[0036] The specific implementation method is as follows: when installing the miniature circuit breaker housing, the assembled miniature circuit breaker housing is placed in the middle position inside the fixed housing 101 and is placed on top of the two support plates 210, and then the two adjusting knobs 202 are rotated to rotate the adjacent adjusting screw rods 201. Since the threads on the top and bottom outer sides of the adjusting screw rods 201 are in opposite directions, the two movable seats 203 at the same end are moved relative to or away from each other on their outer sides, and then under the traction of the two traction plates 204 at the same end, the two clamping plates 206 can be pushed to move relative to or away from each other, so that the two clamping plates 206 can clamp the outer walls of the two ends of the miniature circuit breaker, and at the same time, the bottom of the miniature circuit breaker housing will generate pressure on the support plates 210, so that The slider 209 can be moved downward along the inner wall of the movable groove 207. When the top of the miniature circuit breaker housing contacts the top of the inner wall of the fixed housing 101, the support plate 210 can support the bottom of the miniature circuit breaker housing under the elastic force of the traction spring 208, and then the support pin 212 is used to penetrate the adjacent fixing hole 211 and support the bottom of the adjacent support plate 210, so that the support plate 210 can stably support and fix the miniature circuit breaker housing, and then the protective mechanism 1 can stably install and protect the miniature circuit breaker housing. This embodiment specifically solves the problem that the installation device in the prior art cannot adapt to the installation work of miniature circuit breaker housings of different sizes, making the miniature circuit breaker housing prone to damage.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A housing mounting device for a miniature circuit breaker, comprising a protection mechanism (1), characterized in that: Also includes: A clamping mechanism (2) is arranged on both sides of the interior of the protection mechanism (1) and is used to clamp and fix the housing of the miniature circuit breaker; The clamping mechanism (2) comprises two adjusting screw rods (201), the two adjusting screw rods (201) are respectively arranged on the inner walls at both ends of the protection mechanism (1), the tops of the two adjusting screw rods (201) are fixedly mounted with adjusting knobs (202), the outer walls of the tops and bottoms of the adjusting screw rods (201) are threadedly sleeved with movable seats (203), the inner sides of one end of the two movable seats (203) at the same end are rotatably mounted with traction plates (204), and the ends of the two traction plates (204) at the same end away from the movable seats (203) are provided with clamping plates (206); A traction spring (208) is provided at the top of the inner wall at the opposite end of the two clamping plates (206), a support plate (210) is provided at the bottom of the two traction springs (208), and a support pin (212) for fixing the support plate (210) is provided on the inner wall of the two clamping plates (206).

2. A housing mounting device for a miniature circuit breaker according to claim 1, characterized in that: The protection mechanism (1) comprises a fixed shell (101), the inner walls at both ends of the fixed shell (101) are provided with mounting grooves (102), and the inner walls of the mounting grooves (102) are rotatably connected to adjacent adjusting screw rods (201).

3. A housing mounting device for a miniature circuit breaker according to claim 2, characterized in that: The top and bottom of the inner wall of the installation groove (102) are respectively movably connected to the outer wall of the adjacent movable seat (203); a fixed seat (205) is rotatably installed on the outer side of one end of the two traction plates (204) at the same end away from the movable seat (203); and one end of the fixed seat (205) away from the traction plate (204) is fixedly connected to the outer wall of the adjacent clamping plate (206).

4. The housing mounting device for a miniature circuit breaker according to claim 1, characterized in that: The inner walls of the two clamping plates (206) at opposite ends are each provided with a movable groove (207), and the top of the inner wall of the movable groove (207) is fixedly connected to an adjacent traction spring (208).

5. The housing mounting device for a miniature circuit breaker according to claim 4, characterized in that: A slider (209) is fixedly mounted on the outer wall of one end of the support plate (210), the top of the slider (209) is connected to the fixed wheel at the bottom of the adjacent traction spring (208), and the outer wall of the slider (209) is movably connected to the inner wall of the adjacent movable groove (207).

6. The housing mounting device for a miniature circuit breaker according to claim 4, characterized in that: A plurality of fixing holes (211) are formed at one end of the inner wall of the movable groove (207); the inner wall of the fixing hole (211) is threadedly connected to the outer wall of an adjacent support pin (212); and one end of the support pin (212) away from the fixing hole (211) is movably connected to the bottom of an adjacent support plate (210).

7. The housing mounting device for a miniature circuit breaker according to claim 2, characterized in that: The height dimension of the inner wall of the fixed housing (101) is the same as the height dimension of the clamping plate (206), and the width dimension of the clamping plate (206) is the same as the width dimension of the support plate (210).

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