An instrument housing with good sealing performance for outdoor use

Abstract

The present invention relates to the technical field of instrument housings, and in particular to an instrument housing with good sealing performance for outdoor use, comprising an instrument housing and a sealing cover body arranged on one side of the instrument housing, the sealing cover body being provided with a fixing mechanism for clamping it on the instrument housing, the fixing mechanism comprising a limiting housing fixedly arranged on the top of the instrument housing, and movable clamping plates fixedly installed on both ends of one side of the top of the sealing cover body, both ends of the limiting housing are provided with limiting square grooves respectively matching the two movable clamping plates, and the inner side of the limiting housing is provided with a positioning assembly for fixing and clamping the movable clamping plate. The present invention is conducive to greatly enhancing the sealing performance of the instrument housing, improving the protective performance of the instrument housing when used outdoors, extending the service life of the instrument housing, and effectively avoiding the situation where dust and water vapor enter the gap between the button on the instrument housing panel and the housing, causing failure of its internal components.

Description

Technical Field

[0001] The invention relates to the technical field of instrument housings, and in particular to an instrument housing with good sealing performance for outdoor use. Background Art

[0002] The instrument case is a supporting device that protects the internal components of the instrument. It generally includes components such as the outer shell, panel, lining, and bracket. The instrument case panels currently used outdoors are often exposed to the natural environment. There is a certain gap between the buttons on the panel and the case. When the instrument is used in an environment with a lot of dust or water vapor, dust or water vapor often easily enters the inner side of the case through the gap between the button and the case, which can easily cause malfunctions in the internal components of the instrument case, not only causing damage to the instrument, but also affecting the normal use of the instrument, causing great inconvenience to the user. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides an outdoor instrument housing with good sealing performance, which solves the problem that outdoor dust and water vapor enter the inner side of the housing through the gap between the buttons on the panel and the housing, which easily causes malfunctions of the internal components of the instrument housing.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an outdoor instrument housing with good sealing performance, comprising an instrument housing and a sealing cover body arranged on one side of the instrument housing, wherein the sealing cover body is provided with a fixing mechanism for clamping it on the instrument housing;

[0005] The fixing mechanism includes a limit shell fixedly arranged on the top of the instrument housing, and movable clamping plates fixedly installed on both ends of one side of the top of the sealing cover body. Both ends of the limit shell are provided with limit square grooves respectively matching the two movable clamping plates. A positioning component for fixing and clamping the movable clamping plate is arranged on the inner side of the limit shell. The fixing mechanism also includes a limit component arranged at the bottom of the instrument housing for limiting the sealing cover body.

[0006] Furthermore, the positioning assembly includes movable clamping blocks arranged at both ends of the inner side of the limiting shell, and a movable connecting rod fixedly arranged at the end of the movable clamping block away from the movable clamping plate, and limiting clamping slots are provided on the two movable clamping plates, and the movable clamping block is matched with the limiting clamping slot at one end close to the movable clamping plate, and the inclined surface of the movable clamping block at one end close to the movable clamping plate is matched with the inclined surface of one end of the movable clamping plate, and the positioning assembly also includes a tightening assembly arranged between the two movable connecting rods.

[0007] Furthermore, an adjustment spring fixedly connected to the movable block is provided on one side of the movable connecting rod, a limit baffle fixed to the limit housing is fixed on one end of the adjustment spring, and a fixed sliding groove slidably connected to the movable connecting rod is opened on one end of the limit baffle.

[0008] Furthermore, the clamping assembly includes a limit push block fixedly arranged at one end of the two movable connecting rods, and a limit slide groove opened in the middle of the top of the limit shell. The limit shell is provided with a movable push block, and a sliding block slidably connected to the limit slide groove is fixed at the bottom of the movable push block.

[0009] Furthermore, a movable clamping block is fixed at the bottom of the sliding block, and the two ends of the movable clamping block are respectively matched with two limit push blocks. A square groove is opened on the movable clamping block, and a return spring with one end fixed to the movable clamping block is provided on the inner side of the square groove, and the other end of the return spring is fixedly connected to the limit shell.

[0010] Furthermore, the limit assembly includes limit vertical plates fixedly arranged at both ends of the bottom of the instrument housing, and a sliding transverse groove opened at one end of the limit vertical plates, a movable sliding block is provided on one side of the two limit vertical plates, a limit transverse axis slidably connected to the sliding transverse groove is fixed between the two movable sliding blocks, a movable rotating rod is fixed at the bottom of the sealing cover body, and the limit transverse axis passes through one side of the movable rotating rod and is rotatably connected to it.

[0011] Furthermore, a fixed slot is provided on the top of the two movable sliding blocks, a limit block matching the fixed slot is arranged on the inner side of the fixed slot, a connecting cross bar is fixed between the two limit blocks, a limit vertical slot is provided on the top of the two limit vertical plates, and the two ends of the connecting cross bar are respectively slidably connected to the limit vertical slots, and the two ends of the top of the connecting cross bar are fixed with limit springs fixed to the limit vertical plates.

[0012] Furthermore, a magnetic block is fixed to one end of the position-limiting vertical plate, and one end of the movable sliding block is magnetically connected to the magnetic block.

[0013] Furthermore, a sealing ring gasket matching the instrument housing is fixedly bonded to the inner side of the sealing cover.

[0014] By means of the above technical solution, the present invention provides an outdoor instrument housing with good sealing performance, which has at least the following beneficial effects:

[0015] 1. The present invention fixes the sealing cover on the instrument housing by setting a fixing mechanism. The sealing cover covers one side of the instrument housing to seal and protect the panel on one side of the instrument housing. At the same time, the movable clamping plate on the top of the sealing cover is clamped in the movable clamping plate. The structure is reasonable, which is beneficial to greatly enhance the sealing performance of the instrument housing, improve the protection performance of the instrument housing when used outdoors, extend the service life of the instrument housing, and effectively avoid dust and water vapor entering the gap between the button on the panel of the instrument housing and the housing, causing failure of its internal components.

[0016] 2. The present invention clamps the movable card plate to the inner side of the limit shell by setting a positioning component, the movable card plate is inserted into the inner side of the limit square groove, and the movable connecting rod is pushed to move by the clamping component. The movable connecting rod pushes the movable card block into the limit slot on the movable card plate, and the movable card plate is fixed to the inner side of the limit shell, thereby fixing the sealing cover body on the instrument housing. The sealing cover body provides protection for the panel on one side of the instrument housing, reduces the damage caused by dust and water vapor entering the instrument housing, and will not affect the normal use of the instrument.

[0017] 3. The present invention further limits and fixes the sealing cover by setting a limit component. When the sealing cover needs to be opened to operate the instrument housing panel, the movable card plate is pulled out from the limit housing, and the connecting cross bar is pressed upward to drive the limit blocks at both ends to move upward. The limit blocks move out from the inside of the fixed card slot, and then the sealing cover is pulled to drive the movable rotating rod and the limit horizontal axis to move. The limit horizontal axis moves to one end of the sliding horizontal slot, and the sealing cover is completely detached from the instrument housing. Then, the sealing cover is rotated a certain angle around the limit horizontal axis to facilitate the operation of the instrument housing panel without causing the problem of losing the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the open state of the present invention;

[0021] Figure 3 It is a side perspective cross-sectional view of the present invention;

[0022] Figure 4 It is a partial exploded schematic diagram of the fixing mechanism of the present invention;

[0023] Figure 5 It is an exploded schematic diagram of the limiting assembly of the present invention;

[0024] Figure 6 for Figure 3 Schematic diagram of the enlarged structure of part A.

[0025] In the figure: 1, instrument housing; 2, sealing cover; 3, fixing mechanism; 31, limit housing; 32, movable card plate; 33, limit square groove; 34, positioning assembly; 341, movable card block; 342, movable connecting rod; 343, limit card slot; 344, adjustment spring; 345, limit baffle; 346, fixed slide slot; 347, tightening assembly; 3471, limit push block; 3472, limit slide slot; 3473, movable Push block; 3474, sliding block; 3475, movable pressing block; 3476, square groove; 3477, reset spring; 35, limit assembly; 350, limit vertical plate; 351, sliding horizontal groove; 352, movable sliding block; 353, limit horizontal axis; 354, movable rotating rod; 355, fixed slot; 356, limit block; 357, connecting cross bar; 358, limit spring; 359, magnetic block; 4, sealing ring gasket. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] Embodiment 1

[0028] Figure 1-Figure 4 and Figure 6 An embodiment of the present invention is an outdoor instrument housing with good sealing performance, comprising an instrument housing 1 and a sealing cover 2 arranged on one side of the instrument housing 1, the sealing cover 2 is provided with a fixing mechanism 3 for clamping it on the instrument housing, a sealing ring gasket 4 matching the instrument housing 1 is fixedly bonded to the inner side of the sealing cover 2, the sealing ring gasket 4 is made of a soft rubber material such as chloroprene rubber, the sealing ring gasket 4 matches the outer ring on one side of the panel of the instrument housing 1, and provides a strong protective sealing effect on the panel side of the instrument housing 1.

[0029] The fixing mechanism 3 is used to fix the sealing cover 2 on the instrument housing 1. The sealing cover 2 covers one side of the instrument housing 1 to seal and protect the panel on one side of the instrument housing 1. At the same time, the movable clamping plate 32 on the top of the sealing cover 2 is clamped in the movable clamping plate 32, so that the sealing performance of the instrument housing 1 is greatly enhanced.

[0030] The fixing mechanism 3 includes a limiting shell 31 fixedly arranged on the top of the instrument housing 1, and movable clamping plates 32 fixedly installed on both ends of one side of the top of the sealing cover 2. Both ends of the limiting shell 31 are provided with limiting square grooves 33 respectively matching the two movable clamping plates 32. A positioning component 34 for fixing and clamping the movable clamping plate 32 is arranged on the inner side of the limiting shell 31. The fixing mechanism 3 also includes a limiting component 35 arranged on the bottom of the instrument housing 1 for limiting the sealing cover 2. The movable clamping plate 32 is inserted into the inner side of the limiting square groove 33, and the movable clamping plate 32 is fixed by the positioning component 34, and the movable clamping plate 32 is clamped on the inner side of the limiting shell 31.

[0031] Specifically, the positioning assembly 34 includes active clamping blocks 341 arranged at both ends of the inner side of the limiting shell 31, and an active connecting rod 342 fixedly arranged at one end of the active clamping block 341 away from the active clamping plate 32. The two active clamping plates 32 are provided with a limiting clamping groove 343, and the end of the active clamping block 341 close to the active clamping plate 32 matches the limiting clamping groove 343, and the inclined surface of the end of the active clamping block 341 close to the active clamping plate 32 matches the inclined surface of one end of the active clamping plate 32. One side of the active connecting rod 342 is provided with an adjusting spring 344 fixedly connected to the active clamping block 341, and one end of the adjusting spring 344 is fixed with a limiting baffle 345 fixed to the limiting shell 31. The limiting baffle 345 is fixed to the limiting shell 31. A fixed slide groove 346 slidably connected to the movable link 342 is provided at one end of 45. When the movable link 342 moves, it slides inside the fixed slide groove 346, so that the movement of the movable link 342 is more stable. The positioning component 34 also includes a tightening component 347 arranged between the two movable links 342. The movable link 342 is pushed to move by the tightening component 347. The movable link 342 pushes the movable block 341 into the limiting groove 343 on the movable clamping plate 32, and the movable clamping plate 32 is fixed to the inner side of the limiting shell 31, so that the sealing cover body 2 is fixed to the instrument shell 1, and the sealing cover body 2 provides protection for the panel on one side of the instrument shell 1.

[0032] Specifically, the tightening assembly 347 includes a limiting push block 3471 fixedly arranged at one end of the two movable connecting rods 342, and a limiting slide groove 3472 opened in the middle of the top of the limiting shell 31, a movable push block 3473 is provided on the limiting shell 31, and an anti-skid pad is fixed on the movable push block 3473. The cross-sectional area of ​​the movable push block 3473 is larger than the cross-sectional area of ​​the limiting slide groove 3472, which is beneficial to provide dust prevention for the interior of the limiting shell 31. A sliding block 3474 slidably connected to the limiting slide groove 3472 is fixed at the bottom of the movable push block 3473, and a movable tightening block 3475 is fixed at the bottom of the sliding block 3474, and the two ends of the movable tightening block 3475 are respectively connected to the two limiting push blocks 347 1, a square groove 3476 is provided on the movable tightening block 3475, and a return spring 3477 is provided inside the square groove 3476, one end of which is fixed to the movable tightening block 3475, and the other end of the return spring 3477 is fixedly connected to the limiting housing 31, and by pulling the movable push block 3473, the movable push block 3473 pulls the sliding block 3474 to slide inside the limiting sliding groove 3472, and the sliding block 3474 drives the movable tightening block 3475 to move, and the movable tightening block 3475 pulls one end of the return spring 3477 to move, and the return spring 3477 is elastically deformed and stretched. When the position of the movable tightening block 3475 moves, the two limiting push blocks 3471 move toward the middle direction at the same time.

[0033] The specific implementation process of this embodiment is as follows: when the sealing cover 2 is installed on the instrument housing 1, the sealing cover 2 is first covered on one side of the panel of the instrument housing 1, and the movable push block 3473 is pulled at the same time, and the movable push block 3473 pulls the sliding block 3474 at its bottom to slide inside the limiting slide groove 3472, and the sliding block 3474 drives the movable tight block 3475 at its bottom to move, and the movable tight block 3475 pulls one end of the reset spring 3477 inside the square groove 3476 to move, and reset The spring 3477 is elastically deformed and stretched, and the limit push block 3471 and the movable connecting rod 342 are not tightly pressed, so that the adjustment spring 344 is in a normal state, and then the sealing cover 2 is pushed to slide on one side of the instrument housing 1, and the movable clamping plates 32 at both ends of the top of the sealing cover 2 are inserted into the two limit square grooves 33 at the top of the limit housing 31, and the movable clamping plates 32 completely enter the inner side of the limit square groove 33, and the limit clamping groove 343 on one side of the movable clamping plate 32 matches one end of the movable clamping block 341;

[0034] Then the movable push block 3473 is relaxed, and the reset spring 3477 restores its elastic deformation, pulling the movable tightening block 3475 to move. The movable tightening block 3475 pushes the limit push blocks 3471 at both ends to move, and the limit push block 3471 drives the movable connecting rod 342 at one end thereof to move in the fixed slide groove 346 at one end of the limit baffle 345. The movable connecting rod 342 pushes the movable clamping block 341 at its end to move, and the movable clamping block 341 enters the limit clamping groove 343 on one side of the movable clamping plate 32. At the same time, the movable clamping block 341 drives one end of the adjusting spring 344 to move, and one end of the adjusting spring 344 produces elastic deformation and is stretched, fixing the movable clamping plate 32 to the inner side of the limit shell 31, thereby fixing the top of the sealing cover body 2 on the instrument shell 1.

[0035] Embodiment 2

[0036] refer to Figure 5 , which is basically the same as the first embodiment, and is more optimized in that: the limiting assembly 35 includes a limiting vertical plate 350 fixedly arranged at both ends of the bottom of the instrument housing 1, and a sliding transverse groove 351 opened at one end of the limiting vertical plate 350, and a movable slider 352 is provided on one side of the two limiting vertical plates 350, and a limiting transverse shaft 353 slidably connected to the sliding transverse groove 351 is fixed between the two movable sliders 352, and a movable rotating rod 354 is fixed at the bottom of the sealing cover 2, and the limiting transverse shaft 353 passes through one side of the movable rotating rod 354 and is rotatably connected thereto, and the limiting vertical plate 350 is provided with a movable slider 352 on one side of the two movable sliders 352. A magnetic block 359 magnetically connected to one end of the movable slider 352 is fixed at one end of the plate 350, a fixed slot 355 is provided on the top of the two movable sliders 352, a limit block 356 matching the fixed slot 355 is provided inside the fixed slot 355, a connecting cross bar 357 is fixed between the two limit blocks 356, a limit vertical groove is provided on the top of the two limit vertical plates 350, and the two ends of the connecting cross bar 357 are respectively slidably connected to the limit vertical grooves, and the two ends of the top of the connecting cross bar 357 are fixed with limit springs 358 fixed to the limit vertical plates 350.

[0037] When it is necessary to open the sealing cover 2 to operate the instrument housing 1 panel, the movable card plate 32 is pulled out of the limit housing 31 and the connecting cross bar 357 is pressed upward. The connecting cross bar 357 drives the limit card blocks 356 at both ends to move upward, and the limit card blocks 356 move out from the inner side of the fixed card slot 355, and then the sealing cover 2 is pulled, and the sealing cover 2 drives the movable rotating rod 354 at the bottom to move. The movable rotating rod 354 drives the limit horizontal axis 353 on one side to move inside the sliding horizontal groove 351, and the limit horizontal axis 353 moves to one end of the sliding horizontal groove 351, and the movable slider 352 moves to be fixed with the magnetic block 359 through magnetic connection, and the movable slider 352 is fixed on the limit vertical plate 350, and the sealing cover 2 is completely separated from the instrument housing 1, and then the sealing cover 2 is rotated a certain angle around the limit horizontal axis 353 to facilitate the operation of the instrument housing 1 panel.

[0038] The specific implementation process of this embodiment is as follows: when the sealing cover body 2 slides on one side of the instrument housing 1, the sealing cover body 2 drives the movable rotating rod 354 at its bottom to move, and the movable rotating rod 354 drives the limit horizontal shaft 353 on one side to slide inside the sliding horizontal groove 351, and the limit horizontal shaft 353 drives the movable sliders 352 at both ends to move, and when the movable slider 352 moves to contact one side of the limit card block 356, the movable slider 352 pushes the limit card block 356 to move upward, and the limit card block 356 pushes the connecting cross bar 357 to move upward, and the two ends of the connecting cross bar 357 are respectively in the two limit vertical grooves. Sliding upward sideways, the two ends of the connecting cross bar 357 squeeze two limit springs 358 respectively, the limit springs 358 produce elastic deformation and are compressed, the movable slider 352 continues to move, the position of the limit block 356 matches the fixed slot 355 on the movable slider 352, and then the limit spring 358 restores the elastic deformation, the limit spring 358 pushes the connecting cross bar 357 to move downward, the connecting cross bar 357 pushes the fixed block to move downward to the inside of the fixed slot 355, and the movable slider 352 is clamped on the limit vertical plate 350, thereby fixing the bottom of the sealing cover body 2 on the instrument housing 1.

[0039] During use of the present invention, the sealing cover 2 is installed on the instrument housing 1. First, the sealing cover 2 is covered on one side of the panel of the instrument housing 1, and the movable push block 3473 is pulled. The movable push block 3473 pulls the sliding block 3474 at its bottom to slide inside the limiting slide groove 3472, and the sliding block 3474 drives the movable tightening block 3475 at its bottom to move. The movable tightening block 3475 pulls one end of the return spring 3477 inside the square groove 3476 to move, and the return spring 3477 is elastically deformed and stretched. The limiting push block 3471 and the movable connecting rod 342 lack tightening, so that the adjustment spring 344 is in a normal state, and then the sealing cover 2 is pushed to slide on one side of the instrument housing 1. The movable clamping plates 32 at both ends of the top of the sealing cover 2 are inserted into the two limiting square grooves 33 at the top of the limiting housing 31. The movable clamping plate 32 completely enters the inner side of the limiting square groove 33, and the limiting clamping groove 343 on one side of the movable clamping plate 32 matches one end of the movable clamping block 341.

[0040] Then the movable push block 3473 is relaxed, and the reset spring 3477 restores its elastic deformation, pulling the movable tightening block 3475 to move. The movable tightening block 3475 pushes the limit push blocks 3471 at both ends to move, and the limit push block 3471 drives the movable connecting rod 342 at one end thereof to move in the fixed slide groove 346 at one end of the limit baffle 345. The movable connecting rod 342 pushes the movable clamping block 341 at its end to move, and the movable clamping block 341 enters the limit clamping groove 343 on one side of the movable clamping plate 32. At the same time, the movable clamping block 341 drives one end of the adjusting spring 344 to move, and one end of the adjusting spring 344 produces elastic deformation and is stretched, fixing the movable clamping plate 32 to the inner side of the limit shell 31, thereby fixing the top of the sealing cover body 2 on the instrument shell 1.

[0041] When the sealing cover 2 slides on one side of the instrument housing 1, the sealing cover 2 drives the movable rotating rod 354 at its bottom to move, and the movable rotating rod 354 drives the limiting horizontal shaft 353 on one side to slide inside the sliding horizontal groove 351, and the limiting horizontal shaft 353 drives the movable sliding blocks 352 at both ends to move. When the movable sliding block 352 moves to contact one side of the limiting block 356, the movable sliding block 352 pushes the limiting block 356 to move upward, and the limiting block 356 pushes the connecting cross bar 357 to move upward, and the two ends of the connecting cross bar 357 slide upward on the inside of the two limiting vertical grooves respectively, and the two ends of the connecting cross bar 357 are separated. The two limit springs 358 are squeezed separately, and the limit springs 358 are elastically deformed and compressed, and the movable slider 352 continues to move. The position of the limit block 356 matches the fixed slot 355 on the movable slider 352, and then the limit spring 358 restores its elastic deformation, and the limit spring 358 pushes the connecting cross bar 357 to move downward, and the connecting cross bar 357 pushes the fixed block to move downward to the inside of the fixed slot 355, clamping the movable slider 352 on the limit vertical plate 350, thereby fixing the bottom of the sealing cover body 2 on the instrument housing 1, thereby completely fixing the sealing cover body 2 on the instrument housing 1.

[0042] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor instrument housing with good sealing performance, comprising an instrument housing (1) and a sealing cover (2) arranged on one side of the instrument housing (1), characterized in that: The sealing cover (2) is provided with a fixing mechanism (3) for clamping it on the instrument housing (1); The fixing mechanism (3) comprises a limiting housing (31) fixedly arranged on the top of the instrument housing (1), and movable clamping plates (32) fixedly installed on both ends of one side of the top of the sealing cover (2); both ends of the limiting housing (31) are provided with limiting square grooves (33) respectively matching the two movable clamping plates (32); a positioning component (34) for fixing and clamping the movable clamping plate (32) is arranged on the inner side of the limiting housing (31); and the fixing mechanism (3) further comprises a limiting component (35) arranged on the bottom of the instrument housing (1) for limiting the sealing cover (2); The positioning assembly (34) comprises movable clamping blocks (341) arranged at two ends of the inner side of the limiting shell (31), and a movable connecting rod (342) fixedly arranged at one end of the movable clamping block (341) away from the movable clamping plate (32), and the two movable clamping plates (32) are provided with a limiting clamping groove (343), and the end of the movable clamping block (341) close to the movable clamping plate (32) matches the limiting clamping groove (343), and one side of the movable connecting rod (342) is provided with an adjustment spring (344) fixedly connected to the movable clamping block (341), and one end of the adjustment spring (344) is fixed with a limiting baffle (345) fixed to the limiting shell (31), and one end of the limiting baffle (345) is provided with a fixed sliding groove (346) slidably connected to the movable connecting rod (342), and the positioning assembly (34) also includes a tightening assembly (347) arranged between the two movable connecting rods (342).

2. The outdoor instrument housing with good sealing performance according to claim 1, characterized in that: The clamping assembly (347) includes a limiting push block (3471) fixedly arranged at one end of the two movable connecting rods (342), and a limiting slide groove (3472) opened in the middle of the top of the limiting shell (31); the limiting shell (31) is provided with a movable push block (3473), and a sliding block (3474) slidably connected to the limiting slide groove (3472) is fixed at the bottom of the movable push block (3473).

3. The outdoor instrument housing with good sealing performance according to claim 2, characterized in that: A movable clamping block (3475) is fixed at the bottom of the sliding block (3474), and the two ends of the movable clamping block (3475) are respectively matched with the two limit push blocks (3471), and a square groove (3476) is provided on the movable clamping block (3475), and a return spring (3477) is provided on the inner side of the square groove (3476), one end of which is fixed to the movable clamping block (3475), and the other end of the return spring (3477) is fixedly connected to the limit housing (31).

4. The instrument housing with good sealing performance for outdoor use according to claim 1, characterized in that: The limiting assembly (35) comprises limiting vertical plates (350) fixedly arranged at both ends of the bottom of the instrument housing (1), and a sliding transverse groove (351) opened at one end of the limiting vertical plates (350), one side of each of the two limiting vertical plates (350) is provided with a movable sliding block (352), a limiting transverse axis (353) slidably connected to the sliding transverse groove (351) is fixed between the two movable sliding blocks (352), and a movable rotating rod (354) is fixed at the bottom of the sealing cover body (2), and the limiting transverse axis (353) passes through one side of the movable rotating rod (354) and is rotatably connected thereto.

5. The outdoor instrument housing with good sealing performance according to claim 4, characterized in that: The tops of the two movable sliders (352) are each provided with a fixed slot (355), the inner side of the fixed slot (355) is provided with a matching limit block (356), a connecting cross bar (357) is fixed between the two limit blocks (356), the tops of the two limit vertical plates (350) are each provided with a limit vertical slot, and the two ends of the connecting cross bar (357) are respectively slidably connected to the limit vertical slot, and the two ends of the top of the connecting cross bar (357) are fixed with limit springs (358) fixed to the limit vertical plates (350).

6. The instrument housing with good sealing performance for outdoor use according to claim 4, characterized in that: A magnetic block (359) is fixed to one end of the position-limiting vertical plate (350), and one end of the movable sliding block (352) is magnetically connected to the magnetic block (359).

7. The instrument housing with good sealing performance for outdoor use according to claim 1, characterized in that: A sealing ring gasket (4) matching the instrument housing (1) is fixedly bonded to the inner side of the sealing cover body (2).

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