Digital pressure gauge with external battery box

Abstract

This application discloses a digital pressure gauge with an external battery box, including a housing and a battery box fixed to the housing. The housing is a hollow cylindrical structure with an observation hole formed at one end by a limiting boss, and a stepped groove corresponding to the battery box at the other end. The battery box includes a body and a cover detachable from the body. A step corresponding to the stepped groove is provided on the side of the body near the housing. A plurality of first mounting posts protrude from the limiting boss on the side near the battery box. A connecting post corresponding to the first mounting post protrudes from the side of the body near the housing and is connected to the corresponding first mounting post by a first bolt. This application has a simple structure, the battery box is fixed to the housing, and the cover of the battery box is exposed, facilitating battery replacement.

Description

Technical Field

[0001] This application relates to the field of high-performance, intelligent instruments and meters, and in particular to a digital pressure gauge with an external battery box. Background Technology

[0002] Digital pressure gauges, also known as digital pressure gauges, are high-precision pressure gauges that integrate pressure measurement and display, featuring built-in pressure sensors. They are characterized by vibration resistance, high display accuracy, high stability, zeroing capability, and automatic standby. However, existing digital pressure gauges often have their batteries encapsulated within the casing, requiring complete disassembly for battery replacement, which is inconvenient. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a digital pressure gauge with an external battery box to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This application discloses a digital pressure gauge with an external battery box, including a housing and a battery box fixed to the housing. The housing is a hollow cylindrical structure with an observation hole formed at one end by a limiting boss and a stepped groove corresponding to the battery box at the other end. The battery box includes a box body and a box cover that is detached from the box body. A step corresponding to the stepped groove is provided on the side of the box body near the housing. A plurality of first mounting posts protrude from the side of the limiting boss near the battery box. A connecting post corresponding to the first mounting post protrudes from the side of the box body near the housing and is connected to the corresponding first mounting post by a first bolt.

[0006] Furthermore, in the digital pressure gauge of the aforementioned external battery box, a first threaded hole is provided at the end of the first mounting post near the battery box, and a countersunk hole is provided along the axial direction of the connecting post on the end face of the box body away from the housing, and passes through the corresponding connecting post.

[0007] Furthermore, in the digital pressure gauge of the aforementioned external battery box, an arc-shaped groove protrudes from one end of the connecting post near the first mounting post. The arc-shaped groove is coaxially arranged with the countersunk hole and slidably sleeved on the first mounting post.

[0008] Furthermore, in the digital pressure gauge of the aforementioned external battery box, a protective plate is embedded in the side of the box cover facing away from the housing.

[0009] Furthermore, in the digital pressure gauge of the aforementioned external battery box, a window and a circuit board are provided between the limiting boss and the battery box. The window and the circuit board are installed on the limiting boss by a second bolt. The circuit board is electrically connected to the battery inside the battery box. A display screen and several buttons are provided on the side of the circuit board near the window. The window is a transparent structure and has several functional holes corresponding to the buttons. The buttons pass through the functional holes and protrude from the window. A face mask is provided on the side of the window away from the circuit board. The face mask has an observation port corresponding to the display screen and a mark corresponding to the buttons. A limiting groove corresponding to the face mask is recessed on the side of the window near the face mask.

[0010] Furthermore, in the digital pressure gauge of the aforementioned external battery box, the end of the limiting boss near the battery box has a plurality of second mounting posts protruding from it. The end of the second mounting post near the battery box is provided with a second threaded hole, and the second bolt of the window and the circuit board is connected to the second threaded hole.

[0011] Furthermore, in the digital pressure gauge of the aforementioned external battery box, a positioning boss corresponding to the second mounting post is provided in the window, and a positioning groove corresponding to the second mounting post is recessed at one end of the positioning boss near the second mounting post. A first through hole corresponding to the second bolt is provided in the circuit board, and a second through hole corresponding to the second bolt is provided in the positioning boss and communicates with the positioning groove.

[0012] Furthermore, in the digital pressure gauge of the aforementioned external battery box, the positioning groove is a U-shaped opening groove.

[0013] Furthermore, in the digital pressure gauge of the aforementioned external battery box, the window and the circuit board are respectively provided with clearance grooves corresponding to the first mounting post.

[0014] Furthermore, in the digital pressure gauge of the aforementioned external battery box, the side wall of the limiting groove is recessed with several reference grooves, and the outer wall of the mask is protruded with several positioning ears that correspond to the reference grooves.

[0015] Compared with the prior art, the advantages of this utility model are: the external battery box has a simple digital display pressure gauge structure, the battery box is fixed to the shell, and the cover of the battery box is exposed, which makes it convenient to replace the battery. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The diagram shown is a structural schematic of the digital pressure gauge of the external battery box in a specific embodiment of this utility model.

[0018] Figure 2 The diagram shown is an exploded view of the digital pressure gauge of the external battery box in a specific embodiment of this utility model.

[0019] Figure 3 The diagram shown is an exploded view of the housing and battery box in a specific embodiment of this utility model.

[0020] Figure 4 The diagram shown is an exploded view of the mask, window, and circuit board in a specific embodiment of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] For example, see Figures 1 to 3 As shown, a digital pressure gauge with an external battery box includes a housing 1 and a battery box 2 fixed to the housing 1. The housing 1 is a hollow cylindrical structure with an observation hole formed at one end by a limiting boss 11, and a stepped groove corresponding to the battery box 2 at the other end. The battery box 2 includes a box body 21 and a box cover 22 that is detached from the box body 21. A step corresponding to the stepped groove is provided on the side of the box body 21 near the housing 1. Several first mounting posts 12 protrude from the side of the limiting boss 11 near the battery box 2. Connecting posts 211 corresponding to the first mounting posts 12 protrude from the side of the box body 21 near the housing 1 and are connected to the corresponding first mounting posts 12 by first bolts (not shown).

[0025] In this technical solution, the casing is made of conventional metal or other materials, formed by conventional stamping or die casting processes, and is equipped with conventional wire holes and connectors. The casing and the cover are connected by a conventional disassembly and assembly structure and secured with conventional screws. The casing contains a battery compartment for installing batteries and is equipped with conventional electrode plates. The first mounting post is integrally formed or welded to the casing. When installing the battery box, the step of the casing is engaged with the step groove of the casing, and then the connecting post and the corresponding first mounting post are fixed by the first bolt to complete the installation of the casing. The cover of the battery box is located outside the casing for easy disassembly and assembly when replacing the battery.

[0026] For example, see Figures 1 to 3 As shown, the first mounting post 12 is provided with a first threaded hole at one end near the battery box 2, and the box body 21 is provided with a countersunk hole along the axial direction of the connecting post 211 on the end face away from the housing 1, and passes through the corresponding connecting post 211.

[0027] In this technical solution, the threaded end of the first bolt slides through the countersunk hole and connects to the first threaded hole, thereby fixing the connecting post and the corresponding first mounting post, that is, fixing the box to the shell.

[0028] For example, see Figures 1 to 3 As shown, the end of the connecting post 211 near the first mounting post 12 has an arc-shaped groove 212 protruding out. The arc-shaped groove 212 is coaxially arranged with the countersunk hole and is slidably sleeved on the first mounting post 12.

[0029] In this technical solution, the arc-shaped groove facilitates the docking of the connecting column and the corresponding first mounting column, which in turn facilitates the rapid positioning and installation of the box and improves assembly efficiency.

[0030] For example, see Figures 1 to 3 As shown, a protective plate 23 is embedded in the side of the box cover 22 away from the shell 1.

[0031] In this technical solution, the protective plate is made of conventional materials such as stainless steel and is fixed to the outer side of the box lid (the side facing away from the box body) by means of interference fit or adhesive, so as to improve the strength of the box lid and reduce the possibility of deformation or damage.

[0032] For example, see Figures 1 to 4 As shown, a viewing window 3 and a circuit board 4 are provided between the limiting boss 11 and the battery box 2. The viewing window 3 and the circuit board 4 are installed on the limiting boss 11 by a second bolt (not shown). The circuit board 4 is electrically connected to the battery in the battery box 2. A display screen and several buttons are provided on the side of the circuit board 4 near the viewing window 3. The viewing window 3 is a transparent structure and has several functional holes corresponding to the buttons. The buttons pass through the functional holes and protrude from the viewing window 3. A face mask 5 is provided on the side of the viewing window 3 away from the circuit board 4. The face mask 5 has an observation port corresponding to the display screen and a mark corresponding to the buttons. A limiting groove corresponding to the face mask 5 is recessed on the side of the viewing window 3 near the face mask 5.

[0033] In this technical solution, the circuit board is connected to the electrode plates of the battery box via conventional cables, and the battery provides power to the circuit board. The mask is pasted onto the viewing window and installed as a whole with the viewing window. The viewing window is made of conventional materials such as plexiglass and is integrally molded through processes such as injection molding. The observation port is hollow or transparent and corresponds to the display screen for observing the content displayed by the pressure gauge. The viewing window also has several through holes, which serve as functional holes corresponding to the buttons on the control panel. The end of the button near the mask protrudes from the viewing window, ensuring that the button can be pressed from one side of the mask to set the pressure gauge, etc. The mask is printed with text / letters / symbols to identify the function of the button, and the part corresponding to pressing the button is protruding to accommodate the protruding part of the button. The outer end face of the viewing window near the mask has a recessed limiting groove, and the mask is pasted into the limiting groove.

[0034] For example, see Figures 1 to 4 As shown, the limiting boss 11 has several second mounting posts 13 protruding from one end near the battery box. The second mounting posts 13 have second threaded holes at one end near the battery box 2. The second bolts (not shown) of the window 3 and the circuit board 4 are connected to the second threaded holes.

[0035] In this technical solution, the viewing window and the circuit board are simultaneously fixed to the second mounting post of the housing by the second bolt, which facilitates installation and improves installation speed and accuracy.

[0036] For example, see Figures 1 to 4 As shown, the window 3 is provided with a positioning boss 31 corresponding to the second mounting post 13. The end of the positioning boss 31 near the second mounting post 13 is recessed with a positioning groove 32 corresponding to the second mounting post 13. The circuit board 4 is provided with a first through hole corresponding to the second bolt. The positioning boss 31 is provided with a second through hole corresponding to the second bolt and connects to the positioning groove 32.

[0037] In this technical solution, the positioning boss and the viewing window are integrally formed, and the positioning groove is slidably sleeved on the mounting post, which facilitates quick positioning between the viewing window and the housing. The depth of the positioning groove is consistent with the length of the mounting post. That is, when the outer end face of the viewing window (the end face away from the circuit board) abuts against the inner end face of the limiting boss (the end face near the viewing window), the bottom wall of the positioning groove (the inner wall away from the circuit board) abuts against the end face of the mounting post. When the viewing window and the circuit board are installed, the viewing window and the circuit board are simultaneously fixed to the second mounting post of the housing by the second bolt, which facilitates installation and improves installation speed and accuracy.

[0038] For example, see Figures 1 to 4 As shown, the positioning groove 32 is a U-shaped opening groove.

[0039] In this technical solution, the outer wall of the second mounting post and the inner wall of the housing are connected by reinforcing ribs to improve the fixing strength of the mounting post; the positioning groove is a U-shaped opening groove, which avoids interference with the reinforcing ribs on the one hand, and facilitates quick positioning between the second mounting post on the other hand.

[0040] For example, see Figures 1 to 4 As shown, the window 3 and the circuit board 4 are respectively provided with relief grooves corresponding to the first mounting post 12.

[0041] In this technical solution, the window and circuit board are installed close to the limiting boss. To avoid interference with the first mounting post during installation, the outer wall of the window and circuit board is provided with a U-shaped hole corresponding to the first mounting post. When the window and circuit board are installed, the U-shaped hole slides onto the corresponding first mounting post, which not only avoids installation interference but also plays a preliminary positioning role for the window and circuit board. After the window and circuit board are fixed to the housing with the second bolt, the box can be installed on the housing with the first bolt. The first thread and the second bolt are conventional bolt structures.

[0042] For example, see Figures 1 to 4 As shown, the side wall of the limiting groove is recessed with several reference grooves, and the outer wall of the faceplate 5 is protruding with several positioning ears that correspond to the reference grooves.

[0043] In this technical solution, the side wall of the limiting groove is recessed with three spaced reference grooves, and the circumferential surface of the mask has three positioning ears protruding. When the mask is attached to the viewing window, the three positioning ears are aligned with the corresponding reference grooves, thereby realizing the rapid positioning of the mask and the viewing window and facilitating the rapid positioning and installation of the mask.

[0044] In summary, the external battery box has a simple digital pressure gauge structure, the battery box is fixed to the housing, and the cover of the battery box is exposed, which facilitates battery replacement.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A digital pressure gauge with an external battery compartment, characterized in that, The device includes a housing and a battery box fixed to the housing. The housing is a hollow cylindrical structure with an observation hole formed at one end by a limiting boss and a stepped groove corresponding to the battery box at the other end. The battery box includes a box body and a box cover that is detached from the box body. The box body has a step corresponding to the stepped groove on the side near the housing. The limiting boss has a plurality of first mounting posts protruding on the side near the battery box. The box body has a connecting post corresponding to the first mounting post protruding on the side near the housing and is connected to the corresponding first mounting post by a first bolt.

2. The digital pressure gauge of the external battery box according to claim 1, characterized in that: The first mounting post has a first threaded hole at one end near the battery box, and the end face of the box body opposite to the housing has a countersunk hole along the axial direction of the connecting post, which passes through the corresponding connecting post.

3. The digital pressure gauge of the external battery box according to claim 2, characterized in that: The end of the connecting post near the first mounting post has an arc-shaped groove protruding from it. The arc-shaped groove is coaxially arranged with the countersunk hole and is slidably sleeved on the first mounting post.

4. The digital pressure gauge with an external battery box according to claim 1, characterized in that: A protective plate is embedded in the side of the box lid that is away from the shell.

5. The digital pressure gauge of claim 1, wherein: A viewing window and a circuit board are provided between the limiting boss and the battery box. The viewing window and the circuit board are installed on the limiting boss by a second bolt. The circuit board is electrically connected to the battery in the battery box. A display screen and several buttons are provided on the side of the circuit board near the viewing window. The viewing window is a transparent structure and has several functional holes corresponding to the buttons. The buttons pass through the functional holes and protrude from the viewing window. A face mask is provided on the side of the viewing window away from the circuit board. The face mask has an observation port corresponding to the display screen and a mark corresponding to the buttons. A limiting groove corresponding to the face mask is recessed on the side of the viewing window near the face mask.

6. The digital pressure gauge of claim 5, wherein: The limiting boss has several second mounting posts protruding from one end near the battery box. The second mounting posts have second threaded holes at one end near the battery box. The second bolts of the window and the circuit board are connected to the second threaded holes.

7. The digital pressure gauge of claim 6, wherein: The viewing window is provided with a positioning boss corresponding to the second mounting post. The end of the positioning boss near the second mounting post is recessed with a positioning groove corresponding to the second mounting post. The circuit board is provided with a first through hole corresponding to the second bolt. The positioning boss is provided with a second through hole corresponding to the second bolt and communicates with the positioning groove.

8. The digital pressure gauge of claim 7, wherein: The positioning groove is a U-shaped open groove.

9. The digital pressure gauge of claim 5, wherein: The viewing window and the circuit board are respectively provided with clearance grooves corresponding to the first mounting post.

10. The digital pressure gauge of claim 5, wherein: The sidewall of the limiting groove is recessed with several reference grooves, and the outer wall of the mask is protruding with several positioning ears that correspond to the reference grooves.

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