Reinforced limit switch shell

Abstract

The utility model discloses a reinforced limit switch housing, which relates to the technical field of limit switches and comprises a mounting shell and a sealing cover, the sealing cover is connected to the top of the mounting shell in a clamping manner, buffer strips are arranged on the outer sides of the mounting shell and the sealing cover, and the buffer strips are distributed on the outer sides of the mounting shell and the sealing cover at equal intervals. The section of the buffer strip is of a T-shaped structure, and the buffer strip is made of rubber. According to the reinforced limit switch shell, the outer sides of the mounting shell and the sealing cover are protected through the buffer strip, and the buffer strip is of a T-shaped structure, so that when the mounting shell and the sealing cover are impacted, the buffer strip can uniformly distribute a load, the mounting shell and the sealing cover are more stable when being stressed, and the service life is prolonged; and when the mounting shell and the sealing cover are connected with each other, the buffer strips form a complete annular structure, so that the buffer strips can perform dead-corner-free protection on the outer sides of the mounting shell and the sealing cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of limit switch, concretely to a reinforced limit switch shell. BACKGROUND

[0002] The limit switch is a kind of switch for detecting and limiting the position of equipment or mechanical movement, commonly used in automatic control system.

[0003] The existing limit switch is prone to falling during use, which leads to damage.

[0004] In order to overcome the above defects, the prior art (publication number: CN218631712U) discloses a limit switch with detachable shell for maintenance, which comprises an upper shell, a connecting element and a lower shell. The lower shell is arranged below the upper shell, and the connecting element is arranged on the left side of the upper shell and the lower shell. It also includes a docking block fixed to the outer wall of the connecting element, which is connected to the upper shell and the lower shell through a connecting groove. The inner wall of the upper shell and the lower shell is provided with a connecting groove. A bottom plate is fixed to the bottom of the upper shell. The bottom of the upper shell is provided with a bottom plate, and the fixed groove in the inner wall of the bottom plate and the limit plate is mutually clamped. The limit plate is arranged inside the lower shell, and the inner wall of the limit plate and the bottom plate is provided with a limit groove. The limit groove and the limit rod are mutually clamped, which facilitates the disassembly and assembly of the upper shell and the lower shell, and facilitates the replacement and maintenance of the parts inside the upper shell and the lower shell.

[0005] Although the prior art can overcome the above-mentioned deficiencies, there are still other problems in its operation process: the existing limit switch shell is generally connected by screws during installation, which makes it inconvenient to disassemble and maintain. INVENTION CONTENTS

[0006] The utility model aims at providing a reinforced limit switch shell to solve the problem of the existing limit switch shell in the above background technology, which is generally connected by screws during installation, making it inconvenient to disassemble and maintain.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reinforced limit switch shell, comprising a mounting shell and a sealing cover, the sealing cover is connected to the top of the mounting shell, and the outer side of the mounting shell and the sealing cover is provided with a buffer strip.

[0008] The buffer strips are equidistantly distributed on the outer side of the mounting shell and the sealing cover, and the cross section of the buffer strip is T-shaped structure. The buffer strip is made of rubber material, and when the mounting shell and the sealing cover are connected, the buffer strip is annularly distributed on the outer side of the mounting shell and the sealing cover. The buffer strip forms a protective structure on the outer side of the mounting shell.

[0009] The sealing cover is internally provided with a quick dismounting structure for connecting the mounting shell and the sealing cover.

[0010] Preferably, the quick dismounting structure comprises a mounting groove arranged in the middle of the sealing cover, and a knob is rotatably connected inside the mounting groove, and a screw rod is fixedly connected to the bottom of the knob.

[0011] Preferably, the screw rod extends through the middle of the bottom of the mounting groove to the bottom of the sealing cover, and is threadedly connected inside the mounting groove, and an adjusting piece is rotatably connected to the outside of the lower end of the screw rod, and the end of the fixing piece is in abutment with the inside of the mounting shell when the sealing cover and the mounting shell are mounted.

[0012] Preferably, the outside of the adjusting piece is fixedly connected with a plurality of fixing pieces arranged at equal intervals in a ring shape, and the end of each fixing piece away from the adjusting piece is in alignment with the edge side of the bottom of the sealing cover, and the fixing piece is made of elastic material.

[0013] Preferably, the inside of the bottom of the sealing cover is fixedly connected with a limiting block, and the end of the fixing piece away from the mounting shell is in abutment with the limiting block.

[0014] Preferably, the edge side of the bottom of the sealing cover is fixedly connected with a plurality of sealing rings arranged in a ring shape, and the sealing rings are clampedly connected to the edge side of the top of the mounting shell.

[0015] Preferably, the inside of the mounting shell is provided with a switch assembly, and the middle of one end of the mounting shell is provided with a wire hole, and the end of the mounting shell away from the wire hole is fixedly connected with an extension cavity, and the top of the extension cavity is provided with a reserved hole, and the operating rod of the switch assembly extends to the outside of the mounting shell through the reserved hole, and one side of the inside of the mounting shell is provided with a fixing groove, and the end of the fixing piece away from the adjusting piece is clampedly connected with the fixing groove.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The reinforcing type limit switch shell protects the outside of the mounting shell and the sealing cover through the buffer strips, and when the mounting shell and the sealing cover are impacted, the buffer strips evenly distribute the load, so that the mounting shell and the sealing cover are more stable under stress, the service life is improved, and the buffer strips form a complete ring structure when the mounting shell and the sealing cover are connected, so that the buffer strips can protect the outside of the mounting shell and the sealing cover without dead angle;

[0018] Further, the position of the fixing piece in the mounting shell is automatically corrected during the mutual contact of the fixing piece and the inside of the mounting shell, until the fixing piece is clamped in the fixing groove, thereby connecting the mounting shell and the sealing cover, and the fixing piece and the fixing groove are separated by rotating the knob, so that the mounting shell and the sealing cover can be quickly separated, thereby facilitating the maintenance of the switch assembly in the mounting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the sealing cover separation structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the sealing cover of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the installation shell of the utility model;

[0024] Figure 6 This is a structural diagram of the sealing cover of the utility model.

[0025] In the figure: 1. Mounting shell; 2. Sealing cover; 3. Buffer strip; 4. Mounting slot; 5. Knob; 6. Screw; 7. Adjustment plate; 8. Fixing plate; 9. Limit block; 10. Sealing ring; 11. Switch assembly; 12. Wiring hole; 13. Extension cavity; 14. Reserved hole; 15. Fixing slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figure 1 - Figure 6 , the utility model provides the following technical solutions:

[0028] A reinforced limit switch housing comprises a mounting housing 1 and a sealing cover 2. The sealing cover 2 is snap-fitted to the top of the mounting housing 1, and buffer strips 3 are provided on the outsides of the mounting housing 1 and the sealing cover 2.

[0029] The buffer strips 3 are evenly spaced outside the mounting shell 1 and the sealing cover 2, and the cross-section of the buffer strips 3 is set to a T-shaped structure. The buffer strips 3 are made of rubber. When the mounting shell 1 and the sealing cover 2 are connected to each other, the buffer strips 3 are distributed in an annular shape outside the mounting shell 1 and the sealing cover 2, and the buffer strips 3 form a protective structure outside the mounting shell 1.

[0030] A quick disassembly structure is provided inside the sealing cover 2 to connect the mounting shell 1 and the sealing cover 2 to each other.

[0031] First, the device is installed so that the cable extends from the wiring hole 12 to the inside of the mounting shell 1, and the cable extending from the inside of the wiring hole 12 to the inside of the mounting shell 1 and the switch assembly 11 are connected to each other, and at the same time, the operating rod of the switch assembly 11 and the detected device are connected to each other. During the use of the mounting shell 1 and the sealing cover 2, the outside of the mounting shell 1 and the sealing cover 2 are protected by the buffer bar 3. Since the buffer bar 3 is set to a T-shaped structure, when the mounting shell 1 and the sealing cover 2 are impacted, the buffer bar 3 will evenly distribute the load, so that the mounting shell 1 and the sealing cover 2 are more stable when subjected to force, thereby improving the service life, and when the mounting shell 1 and the sealing cover 2 are connected to each other, the buffer bar 3 forms a complete annular structure, so that the buffer bar 3 can protect the outside of the mounting shell 1 and the sealing cover 2 without dead angles.

[0032] Example 2: Based on Example 1, a quick disassembly and assembly structure is also disclosed, and its specific structure is as follows:

[0033] The quick disassembly structure includes a mounting groove 4 provided in the middle of the sealing cover 2 , a knob 5 is rotatably connected inside the mounting groove 4 , and a screw rod 6 is fixedly connected to the bottom of the knob 5 .

[0034] The screw 6 passes through the middle of the bottom of the mounting groove 4 and extends to the bottom of the sealing cover 2, and the screw 6 is threadedly connected to the inside of the mounting groove 4. The outer side of the lower end of the screw 6 is rotatably connected to the adjusting piece 7, and when the sealing cover 2 and the mounting shell 1 are installed to each other, the end of the fixing piece 8 fits against the inner side of the mounting shell 1.

[0035] The outer side of the adjustment piece 7 is fixedly connected to an annular fixed piece 8 with equal spacing, and one end of each fixed piece 8 away from the adjustment piece 7 is aligned with the bottom side of the sealing cover 2, and the fixed piece 8 is made of elastic material.

[0036] A limiting block 9 is fixedly connected to the inner side of the bottom of the sealing cover 2 , and the limiting block 9 and an end of the fixing plate 8 away from the mounting shell 1 are in contact with each other.

[0037] An annular sealing ring 10 is fixedly connected to the bottom side of the sealing cover 2 , and the sealing ring 10 is snap-connected to the top side of the mounting shell 1 .

[0038] A switch assembly 11 is provided inside the mounting shell 1, and a wiring hole 12 is provided in the middle of one end of the mounting shell 1. An extension cavity 13 is fixedly connected to the end of the mounting shell 1 away from the wiring hole 12, and a reserved hole 14 is provided at the top of the extension cavity 13. The operating rod of the switch assembly 11 extends to the outside of the mounting shell 1 through the reserved hole 14. A fixing groove 15 is provided on one side of the interior of the mounting shell 1, and the fixing groove 15 is engaged with the end of the fixing plate 8 away from the adjusting plate 7.

[0039] In the process of installing the sealing cover 2, first, the fixed sheet 8 and the limiting block 9 are aligned with each other, and the knob 5 is rotated to drive the screw rod 6 to rotate inside the installation groove 4, at this time the screw rod 6 will drive the adjusting sheet 7 to move upwards, when the adjusting sheet 7 moves upwards, the fixed sheet 8 will contact with the limiting block 9, because the fixed sheet 8 moves upwards, the limiting block 9 will cause the fixed sheet 8 to bend at the bottom of the sealing cover 2, so that the end of the fixed sheet 8 is located inside the sealing cover 2, at this time the installation shell 1 and the sealing cover 2 are connected with each other, and the knob 5 is rotated to drive the screw rod 6 to rotate inside the installation groove 4, so that the screw rod 6 drives the adjusting sheet 7 to move downwards, so that the fixed sheet 8 moves downwards, in the process of moving downwards of the fixed sheet 8, the limitation of the limiting block 9 to the fixed sheet 8 will gradually decrease, so that the bending of the fixed sheet 8 at the bottom of the sealing cover 2 gradually decreases, at this time the end of the fixed sheet 8 will be in close contact with the inner side of the installation shell 1, because the length of the fixed sheet 8 is not the same, in the process of the fixed sheet 8 contacting with the inner side of the installation shell 1, the position of the fixed sheet 8 in the installation shell 1 will be automatically corrected, until the fixed sheet 8 is clamped in the fixed groove 15, so that the installation shell 1 and the sealing cover 2 are connected with each other, and the fixed sheet 8 is separated from the fixed groove 15 by rotating the knob 5, so that the installation shell 1 and the sealing cover 2 can be quickly separated from each other, so as to facilitate the maintenance of the switch assembly 11 in the installation shell 1.

[0040] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A reinforced limit switch housing, comprising a mounting housing (1) and a sealing cover (2), wherein the sealing cover (2) is snap-fitted to the top of the mounting housing (1), and buffer strips (3) are provided on the outsides of the mounting housing (1) and the sealing cover (2); characterized in that The buffer strips (3) are distributed at equal intervals on the outside of the mounting shell (1) and the sealing cover (2), and the cross section of the buffer strips (3) is set to a T-shaped structure. The buffer strips (3) are set to a rubber material, and when the mounting shell (1) and the sealing cover (2) are connected to each other, the buffer strips (3) are distributed in an annular shape on the outside of the mounting shell (1) and the sealing cover (2), and the buffer strips (3) form a protective structure on the outside of the mounting shell (1); A quick disassembly structure for connecting the mounting shell (1) and the sealing cover (2) is provided inside the sealing cover (2).

2. The reinforced limit switch housing of claim 1, wherein: The quick disassembly and assembly structure comprises a mounting groove (4) arranged in the middle of the sealing cover (2), a knob (5) is rotatably connected inside the mounting groove (4), and a screw rod (6) is fixedly connected to the bottom of the knob (5).

3. A reinforced limit switch housing according to claim 2, wherein: The screw rod (6) passes through the middle of the bottom of the installation groove (4) and extends to the bottom of the sealing cover (2), and the screw rod (6) is threadedly connected to the inside of the installation groove (4). The outer side of the lower end of the screw rod (6) is rotatably connected to the adjustment plate (7), and when the sealing cover (2) and the installation shell (1) are installed with each other, the end of the fixing plate (8) and the inner side of the installation shell (1) are in contact with each other.

4. The reinforced limit switch housing of claim 3, wherein: The outer side of the regulating piece (7) is fixedly connected to an annular fixed piece (8) distributed at equal intervals, and the end of each fixed piece (8) away from the regulating piece (7) is aligned with the bottom side of the sealing cover (2), and the fixed piece (8) is made of elastic material.

5. A reinforced limit switch housing according to claim 4, wherein: The inner side of the bottom of the sealing cover (2) is fixedly connected to a limiting block (9), and the limiting block (9) and the end of the fixing plate (8) away from the mounting shell (1) are in contact with each other.

6. A reinforced limit switch housing according to claim 5, wherein: An annularly distributed sealing ring (10) is fixedly connected to the bottom side of the sealing cover (2), and the sealing ring (10) is snap-connected to the top side of the mounting shell (1).

7. The reinforced limit switch housing of claim 1, wherein: A switch assembly (11) is provided inside the mounting shell (1), and a wiring hole (12) is provided in the middle of one end of the mounting shell (1). An end of the mounting shell (1) away from the wiring hole (12) is fixedly connected to an extension cavity (13), and a reserved hole (14) is provided on the top of the extension cavity (13). The operating rod of the switch assembly (11) extends to the outside of the mounting shell (1) through the reserved hole (14). A fixing groove (15) is provided on one side of the interior of the mounting shell (1), and the fixing groove (15) and the end of the fixing plate (8) away from the adjustment plate (7) are mutually engaged and connected.

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