Instrument transmitter and window structure thereof

Abstract

The utility model discloses an instrument transmitter and a window structure thereof, which are applied to the technical field of instrument equipment. The window structure of the instrument transmitter comprises a shell and window glass, an installation cavity is formed in the shell, the two opposite ends of the shell are provided with an installation edge and an installation opening respectively, a window is defined by the installation edge, and the window and the installation opening are both communicated with the installation cavity; the window glass is located in the installation cavity, the side, facing the window, of the window glass is an installation side, and the installation side is installed on the installation edge so that the window can be blocked by the window glass. The installation side and the installation edge of the window glass are sealed through a first sealing piece, and the outer circumferential wall of the window glass and the inner circumferential wall of the shell are sealed through a second sealing piece. According to the window structure of the instrument transmitter, double sealing is achieved through the first sealing piece and the second sealing piece, the sealing protection performance is effectively improved, and the sealing reliability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument equipment, in particular to an instrument transmitter and a window structure thereof. Background Art

[0002] Instrument transmitters are usually equipped with a window structure for users to read the displayed content through the window structure. In the window structure, the window glass is required to seal the window to achieve waterproof and explosion-proof functions. However, the current sealing of the window glass to the window is usually done by dispensing glue on the periphery of the window glass. The glue dispensing position is also prone to long-term water accumulation, which can cause the glue to fail and the sealing reliability is poor. Utility Model Content

[0003] The main purpose of the utility model is to provide a window structure of an instrument transmitter and the instrument transmitter, aiming to solve the technical problem of poor sealing reliability of the window structure of the existing instrument transmitter.

[0004] To achieve the above object, the utility model proposes a window structure of an instrument transmitter, the window structure of the instrument transmitter comprising:

[0005] A housing, wherein a mounting cavity is formed in the housing, and opposite ends of the housing respectively have mounting edges and mounting openings, the mounting edges enclose a window, and the window and the mounting opening are both in communication with the mounting cavity;

[0006] Window glass, the window glass is located in the installation cavity, the side of the window glass facing the window is the installation side, and the installation side is installed on the installation edge so that the window glass blocks the window; the installation side of the window glass and the installation edge are sealed by a first seal, and the outer peripheral wall of the window glass and the inner peripheral wall of the shell are sealed by a second seal.

[0007] In one embodiment, the first sealing member is a waterproof double-sided sealing strip, and the installation side and the installation edge are respectively bonded to opposite sides of the waterproof double-sided sealing strip.

[0008] In one embodiment, the two surfaces of the mounting edge and the mounting side that are arranged opposite to each other form a mounting surface and a bonding surface, respectively, wherein the mounting surface is recessed in a direction away from the bonding surface to form a limiting groove, the waterproof double-sided sealing strip is arranged in the limiting groove, and the bonding surface is bonded to the waterproof double-sided sealing strip and adhered to the mounting surface.

[0009] In one embodiment, a sealing gap is formed between the outer peripheral wall of the window glass and the inner peripheral wall of the housing, and the second sealing member is a sealant filled in the sealing gap.

[0010] In one embodiment, the sealing gap is an annular gap that is completely arranged around the outer peripheral wall of the window glass, and the sealant fills the sealing gap.

[0011] In one embodiment, the outer peripheral wall of the window glass and the inner peripheral wall of the housing are evenly spaced to form the sealing gap with a uniform radial width at all locations;

[0012] In one embodiment, the sealing gap extends from the mounting edge along the axial direction of the window glass to a side of the window glass facing away from the window, and the axial depth of the sealing gap is consistent at all locations.

[0013] In one embodiment, a buffer component is disposed in the installation cavity, a side of the window glass facing away from the window is a contact side, and the buffer component abuts against the contact side of the window glass.

[0014] In one embodiment, the buffer assembly includes an elastic ring and an abutment ring, the abutment ring is installed on the inner circumferential wall of the shell, the elastic ring is located between the abutment ring and the window glass, and the abutment ring presses the elastic ring against the abutment side.

[0015] In one embodiment, the abutment ring presses the elastic ring against the abutment side near its outer edge, and the inner circumferential wall of the shell is provided with a slot for the outer edge of the abutment ring to extend into and be plugged into the slot.

[0016] In one embodiment, the abutment ring is a pressure ring or an elastic retaining ring for a hole, and the elastic ring is a wave spring.

[0017] The utility model also provides an instrument transmitter, which comprises a main body and the window structure of the instrument transmitter as described above, and the installation port is installed on the main body.

[0018] In the technical solution of the utility model, the two ends of the shell are respectively provided with a mounting edge and a mounting opening, wherein the mounting edge encloses a window to ensure the visualization function. The mounting opening is used to connect with the main body of the instrument transmitter to realize the assembly of the window structure and the main body. The window glass is located in the mounting cavity of the shell, and the side of the window glass facing the window is installed on the mounting edge, so that the window glass blocks the window to prevent external water and moisture from entering the mounting cavity of the shell from the window, thereby preventing the electronic components in the mounting cavity from being immersed in water or damp, and ensuring normal operation. The mounting side of the window glass is sealed and connected to the mounting edge by a first sealing member to realize a single seal; and the outer peripheral wall of the window glass is sealed and connected to the inner peripheral wall of the shell by a second sealing member to realize a second seal, and then double sealing is realized by the first sealing member and the second sealing member, which effectively improves the sealing protection performance and enhances the sealing reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is an exploded schematic diagram of the window structure of an instrument transmitter according to an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the assembly cross section of the window structure of the instrument transmitter according to one embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of a part of the window structure of the instrument transmitter according to one embodiment of the utility model;

[0023] Figure 4 for Figure 3 A magnified schematic diagram of the middle A area;

[0024] Figure 5 This is a structural schematic diagram of the window structure of the instrument transmitter of one embodiment of the utility model, which is assembled with the aid of a cylindrical tool;

[0025] Figure 6 Another cross-sectional schematic diagram of a part of the window structure of the instrument transmitter according to an embodiment of the utility model.

[0026] Description of Figure Numbers:

[0027] 100. Window structure; 10. Shell; 11. Installation cavity; 12. Installation edge; 121. Installation surface; 13. Installation port; 14. Window; 15. Slot; 20. Window glass; 21. Installation side; 211. Adhesive surface; 22. Abutment side; 30. First sealing member; 30a. Waterproof double-sided sealing strip; 40. Second sealing member; 40a. Sealant; 50. Sealing gap; 60. Buffer assembly; 61. Elastic ring; 62. Abutment ring; 200. Cylindrical tooling; 201. Limiting step.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] Instrument transmitters are usually equipped with a window structure for users to read the displayed content through the window structure. In the window structure, the window glass is required to seal the window to achieve waterproof and explosion-proof functions. However, the current sealing of the window glass to the window is usually done by dispensing glue on the periphery of the window glass. The glue dispensing position is also prone to long-term water accumulation, which can cause the glue to fail and the sealing reliability is poor.

[0033] The utility model provides an instrument transmitter and a window structure thereof which can solve the above problems.

[0034] In one embodiment, a window structure 100 of an instrument transmitter includes a shell 10 and a window glass 20, wherein an installation cavity 11 is formed in the shell 10, and opposite ends of the shell 10 respectively have an installation edge 12 and an installation opening 13, the installation edge 12 surrounds a window 14, and the window 14 and the installation opening 13 are both connected to the installation cavity 11; the window glass 20 is located in the installation cavity 11, and the side of the window glass 20 facing the window is the installation side 21, and the installation side 21 is installed on the installation edge 12 so that the window glass 20 blocks the window 14; the installation side 21 of the window glass 20 is sealed with the installation edge 12 by a first sealing member 30, and the outer peripheral wall of the window glass 20 and the inner peripheral wall of the shell 10 are sealed by a second sealing member 40.

[0035] like Figures 1 to 6 As shown, the front and rear ends of the housing 10 are respectively provided with a mounting edge 12 and a mounting opening 13, wherein the mounting edge 12 encloses a window 14 to ensure the visualization function. The mounting opening 13 is used to connect with the main body of the instrument transmitter to realize the assembly of the window structure 100 and the main body. The window 14 and the mounting opening 13 are respectively connected with the front and rear ends of the mounting cavity 11. The window glass 20 is located in the mounting cavity 11. It can be understood that in addition to installing the window glass 20, the mounting cavity 11 can also accommodate display electronic components of the instrument transmitter. The side of the window glass 20 facing the window 14, that is, the front side of the window glass 20 is the mounting side 21, and the mounting side 21 is mounted on the mounting edge 12, so that the window glass 20 blocks the window 14 to prevent external water and moisture from entering the mounting cavity 11 of the housing 10 from the window 14, thereby preventing the electronic components in the mounting cavity 11 from being immersed in water or damp, and ensuring normal operation.

[0036] The mounting side 21 of the window glass 20 and the mounting edge 12 are sealed by the first seal 30. Specifically, the mounting side 21 of the window glass 20 and the mounting edge 12 are sealed by the first seal 30 to achieve one seal; and the outer peripheral wall of the window glass 20 and the inner peripheral wall of the shell 10 are sealed by the second seal 40. Specifically, the outer peripheral wall of the window glass 20 and the inner peripheral wall of the shell 10 are sealed by the second seal 40 to achieve two seals, and then double sealing is achieved by the first seal 30 and the second seal 40, which effectively improves the sealing protection performance and enhances the sealing reliability.

[0037] In one embodiment, the first sealing member 30 is a waterproof double-sided sealing tape 30a, and the installation side 21 and the installation edge 12 are respectively bonded to the opposite sides of the waterproof double-sided sealing tape 30a. The waterproof double-sided sealing tape 30a has both sealing and waterproof properties and double-sided adhesive properties. During the assembly process, the front side of the waterproof double-sided sealing tape 30a can be first bonded to the installation edge 12, specifically, bonded to the rear surface of the installation edge 12 facing the installation cavity 11, and then the window glass 20 is sent into the installation cavity 11 from the installation port 13, and the installation side 21 on the front side thereof is bonded to the rear side of the waterproof double-sided tape, thereby achieving pre-fixation of the window glass 20 and the housing 10, which is convenient for subsequent assembly.

[0038] The mounting side 21 of the window glass 20 is sealed to the mounting edge 12 by a waterproof double-sided sealing strip 30a, which not only plays a role of sealing and waterproofing, effectively blocking external water and moisture from entering the mounting cavity 11 through the window 14, but also can realize the pre-fixation of the window glass 20 and the shell 10, facilitating subsequent assembly.

[0039] Furthermore, the two surfaces of the mounting edge 12 and the mounting side 21 facing each other respectively form a mounting surface 121 and a bonding surface 211, wherein the mounting surface 121 is recessed in a direction away from the bonding surface 211 to form a limiting groove, and the waterproof double-sided sealing strip 30a is arranged in the limiting groove, and the bonding surface 211 is bonded to and adhered to the mounting surface 121.

[0040] It can be understood that the two surfaces of the mounting edge 12 and the mounting side 21 facing each other are the rear surface of the mounting edge 12 facing the mounting cavity 11 and the front surface of the mounting side 21, specifically, the rear surface of the mounting edge 12 is the mounting surface 121, and the front surface of the mounting side 21 is the bonding surface 211. The mounting surface 121 of the mounting edge 12 is recessed in the direction away from the bonding surface 211 to form a limiting groove, which can match the shape of the waterproof double-sided sealing strip 30a, and is used to accommodate, limit and fix the waterproof double-sided sealing strip 30a, so as to install the waterproof double-sided sealing strip 30a, and can compensate for the thickness of the waterproof double-sided sealing strip 30a, that is, the thickness in the front-to-back direction, so that the bonding surface 211 can be bonded to the waterproof double-sided sealing strip 30a while also being attached to the mounting surface 121, thereby preventing a gap between the bonding surface 211 and the mounting surface 121 and improving the sealing reliability. It should be noted that the bonding surface 211 of the mounting side 21 of the window glass 20 can squeeze the waterproof double-sided sealing strip 30a to adhere to the waterproof double-sided sealing strip 30a, and squeeze the waterproof double-sided sealing strip 30a into the limiting groove to seal the sealing limiting groove, thereby improving the sealing reliability.

[0041] In one embodiment, a sealing gap 50 is formed between the outer peripheral wall of the window glass 20 and the inner peripheral wall of the housing 10, and the second sealing member 40 is a sealant 40a filled in the sealing gap 50. When the window glass 20 is bonded to the waterproof double-sided sealing strip 30a to achieve pre-fixation with the housing 10, a sealing gap 50 is also formed between the outer peripheral wall of the window glass 20 and the inner peripheral wall of the housing 10, and glue is dispensed into the sealing gap 50 to form the sealant 40a filled in the sealing gap 50. The sealant 40a not only fills and seals the sealing gap 50 to enhance the sealing reliability, but also plays a role in bonding the outer peripheral wall of the window glass 20 and the inner peripheral wall of the housing 10, thereby improving the assembly stability. In addition, since the window glass 20 is bonded to the waterproof double-sided sealing strip 30a to be pre-fixed with the housing 10, the window glass 20 will not move when glue is dispensed into the sealing gap 50 later, which is conducive to glue dispensing, reduces the process difficulty, and improves the reliability of glue dispensing and sealing.

[0042] In the window structure 100 of the instrument transmitter of the present invention, the front surface of the window glass 20 is sealed and connected to the installation edge 12 by a waterproof double-sided sealing strip 30a to prevent external water and moisture from entering the sealing gap 50 and causing the sealant 40a to fail. In addition, the outer peripheral wall of the window glass 20 and the inner peripheral wall of the shell 10 are sealed and connected by the sealant 40a to achieve double fixation and double sealing between the window glass 20 and the shell 10, effectively improving the sealing protection performance while improving the assembly stability and enhancing the sealing reliability.

[0043] Furthermore, the sealing gap 50 is an annular gap that is arranged in a full circle around the outer wall of the window glass 20, and the sealant 40a fills the sealing gap 50, so that the outer wall of the window glass 20 is fully bonded and fixed to the inner wall of the shell 10 through the sealant 40a, further improving the assembly firmness and enhancing the sealing reliability.

[0044] In one embodiment, the outer circumferential wall of the window glass 20 and the inner circumferential wall of the housing 10 are spaced uniformly to form a sealing gap 50 with a uniform radial width at each location. The radial width of the sealing gap 50 is uniform at each location to form a sealant 40a with a uniform radial width, thereby improving the sealing uniformity, improving the bonding uniformity between the window glass 20 and the housing 10, and improving the assembly firmness.

[0045] In order to make the outer circumferential wall of the window glass 20 and the inner circumferential wall of the housing 10 evenly spaced, tooling may be used to assist in the process of assembling the window glass 20 and the housing 10, for example, Figure 5 As shown, the auxiliary assembly is performed using a cylindrical fixture 200. The front end surface of the cylindrical wall of the cylindrical fixture 200 is recessed downward to form a limiting step 201, and the thickness of the cylindrical wall at the limiting step 201 is consistent.

[0046] During the assembly process, after the waterproof double-sided sealing strip 30a is bonded to the limiting groove, the housing 10 can be placed with the mounting opening 13 facing downward, the window glass 20 can be supported on the limiting step 201, and the window glass 20 can be lifted from the mounting opening 13 of the housing 10 by using the cylindrical fixture 200 to the bonding surface 211 of the window glass 20 to bond with the waterproof double-sided sealing strip 30a and fit the mounting surface 121. Since the thickness of the cylinder wall at the limiting step 201 of the cylindrical fixture 200 is consistent at all locations, a sealing gap 50 with a consistent radial width is formed at all locations between the outer peripheral wall of the window glass 20 and the inner peripheral wall of the cylinder, thereby reducing the process difficulty by using the cylindrical fixture 200 to assist in assembly.

[0047] like Figures 3 to 6 As shown, in one embodiment, the sealing gap 50 extends from the mounting edge 12 along the axial direction of the window glass 20 to the side of the window glass 20 away from the window 14, that is, the sealing gap 50 extends from the mounting edge 12 from front to back to the mounting surface 121 away from the window, and the axial depth of the sealing gap 50 is consistent at all locations. The axial depth of the sealing gap 50 is the thickness of the sealant 40a. Therefore, after the sealing gap 50 is filled with the sealant 40a, the thickness of the sealant 40a is consistent at all locations, thereby improving the sealing uniformity, improving the bonding uniformity between the window glass 20 and the housing 10, and improving the assembly firmness.

[0048] In one embodiment, a buffer assembly 60 is disposed in the installation cavity 11, and the side of the window glass 20 away from the window 14 is the abutting side 22, and the buffer assembly 60 abuts against the abutting side 22 of the window glass 20. The side of the window glass 20 away from the window 14, that is, the rear side of the window glass 20 is the abutting side 22, and the buffer assembly 60 abuts against the abutting side 22. The buffer assembly 60 has a buffering effect on the window glass 20, preventing the window glass 20 from bursting when impacted, and has an explosion-proof effect.

[0049] In one embodiment, the buffer assembly 60 includes an elastic ring 61 and an abutting ring 62. The abutting ring 62 is mounted on the inner peripheral wall of the housing 10. The elastic ring 61 is located between the abutting ring 62 and the window glass 20. The abutting ring 62 presses the elastic ring 61 against the abutting side 22. Figure 1 and Figure 2 As shown, the waterproof double-sided sealing strip 30a, the window glass 20, the elastic ring 61 and the abutting ring 62 are arranged in sequence from front to back. The abutting ring 62 presses the elastic ring 61 against the abutting side 22 from the rear side. The elastic ring 61 is elastic and plays a buffering role for the window glass 20, thereby protecting the window glass 20.

[0050] Furthermore, the abutting ring 62 presses the elastic ring 61 against the abutting side 22 near its outer edge to avoid blocking the visible area of ​​the window glass 20. The inner peripheral wall of the housing 10 is provided with a slot 15, into which the outer edge of the abutting ring 62 extends and is plugged and matched with the outer edge of the abutting ring 62, so as to realize the plug-in assembly between the housing 10 and the abutting ring 62, which is simple, convenient and easy to assemble.

[0051] In one embodiment, the abutment ring 62 is a pressure ring or a hole elastic retaining ring, which is easy to obtain and easy to assemble, and can support and protect the window glass 20. The elastic ring 61 is a wave spring, which has the advantages of high elasticity and restoring force, light weight, strong fatigue resistance, easy installation and space saving.

[0052] The utility model also provides an instrument transmitter, which includes a main body and the above-mentioned window structure 100 of the instrument transmitter, and the mounting port 13 is mounted on the main body to realize the assembly of the window structure 100 and the main body. The specific structure and use of the window structure 100 of the instrument transmitter refer to the above-mentioned embodiment. Since the instrument transmitter adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0053] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A window structure of an instrument transmitter, characterized in that: The window structure of the instrument transmitter includes: A housing, wherein a mounting cavity is formed in the housing, and opposite ends of the housing respectively have mounting edges and mounting openings, the mounting edges enclose a window, and the window and the mounting opening are both in communication with the mounting cavity; Window glass, the window glass is located in the installation cavity, the side of the window glass facing the window is the installation side, and the installation side is installed on the installation edge so that the window glass blocks the window; the installation side of the window glass and the installation edge are sealed by a first seal, and the outer peripheral wall of the window glass and the inner peripheral wall of the shell are sealed by a second seal.

2. The window structure of the instrument transmitter according to claim 1, characterized in that: The first sealing member is a waterproof double-sided sealing strip, and the installation side and the installation edge are respectively bonded to opposite sides of the waterproof double-sided sealing strip.

3. The window structure of the instrument transmitter according to claim 2, characterized in that: The two surfaces of the mounting edge and the mounting side facing each other respectively form a mounting surface and a bonding surface, wherein the mounting surface is recessed in a direction away from the bonding surface to form a limiting groove, the waterproof double-sided sealing strip is arranged in the limiting groove, and the bonding surface is bonded to the waterproof double-sided sealing strip and adhered to the mounting surface.

4. The window structure of the instrument transmitter according to claim 1, characterized in that: A sealing gap is formed between the outer peripheral wall of the window glass and the inner peripheral wall of the shell, and the second sealing member is a sealant filled in the sealing gap.

5. The window structure of the instrument transmitter according to claim 4, characterized in that: The sealing gap is an annular gap that is arranged around the outer peripheral wall of the window glass for a whole circle, and the sealing gap is filled with the sealant.

6. The window structure of the instrument transmitter according to claim 5, characterized in that: The outer peripheral wall of the window glass and the inner peripheral wall of the housing are evenly spaced to form the sealing gap with a uniform radial width at each location.

7. The window structure of the instrument transmitter according to claim 5, characterized in that: The sealing gap extends from the mounting edge along the axial direction of the window glass to a side of the window glass away from the window, and the axial depth of each part of the sealing gap is consistent.

8. The window structure of the instrument transmitter according to any one of claims 1 to 7, characterized in that: A buffer component is arranged in the installation cavity, a side of the window glass facing away from the window is abutting side, and the buffer component abuts against the abutting side of the window glass.

9. The window structure of the instrument transmitter according to claim 8, characterized in that: The buffer assembly includes an elastic ring and an abutment ring, wherein the abutment ring is installed on the inner peripheral wall of the shell, the elastic ring is located between the abutment ring and the window glass, and the abutment ring presses the elastic ring against the abutment side.

10. The window structure of the instrument transmitter according to claim 9, characterized in that: The abutment ring presses the elastic ring against the abutment side near its outer edge, and the inner peripheral wall of the shell is provided with a slot for the outer edge of the abutment ring to extend into and be plugged into the slot.

11. The window structure of the instrument transmitter according to claim 9, characterized in that: The abutting ring is a pressure ring or an elastic retaining ring for a hole, and the elastic ring is a wave spring.

12. An instrument transmitter, characterized in that: The instrument transmitter comprises a main body and a window structure of the instrument transmitter according to any one of claims 1 to 11, and the mounting port is mounted on the main body.

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