CN209745456U

CN209745456U - Pressure gauge structure

Info

Publication number: CN209745456U
Application number: CN201920904792.3U
Authority: CN
Inventors: 冯斌浩
Original assignee: Lavorazione Electric Co Ltd
Current assignee: Lavorazione Electric Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2019-12-06
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a pressure gauge structure, which comprises a shell, a core and a pressure driving device, wherein the shell is provided with a vent pipeline communicated with a joint; the core is rotatable to be set up in the casing, and pressure drive arrangement is including the tube core piece of connecting vent line and the mobile drive structure that sets up in the tube core piece, the drive structure warp the window that tube core piece lateral wall was seted up is connected with the core, adopts this technical scheme, when gas pressure enters into the tube core piece along vent line from the joint in, can promote the drive structure and slide and drive the core rotation along the tube core piece to drive the pointer and rotate the effect in order to realize pressure detection, in this technical scheme, the pressure drive arrangement who adopts tube core piece and drive structure to constitute replaces traditional C venturi tube drive mode, simplify the product structure, and production technology is more simple, reduces manufacturing cost, and the transmission sensitivity is high, and structural stability is good, thereby promotes the performance and the life of manometer.

Description

Pressure gauge structure

Technical Field

The utility model relates to an instrument and meter technical field, concretely relates to manometer structure.

Background

The pressure gauge is an instrument for measuring and indicating the pressure higher than the ambient pressure, and is widely available in the fields of heat distribution pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance plants and shops, and the like. The existing pressure gauges basically use a C-shaped pipe as an elastic sensing element to realize mechanical transmission, can be used for measuring the pressure of fluid such as gas or liquid and are widely applied to industry.

For example, chinese patent document CN105043654A discloses a pressure gauge for diesel engine, which includes a housing, a C-shaped tube, a hairspring, a movement, a head, a connecting rod rivet, a connecting rod, a movement rivet and a pointer, wherein the movement is connected to the housing, the pointer is installed on the upper portion of the movement, the C-shaped tube has elasticity, and is connected to the connecting rod rivet through the head, the connecting rod is connected between the connecting rod rivet and the movement rivet, the movement rivet is connected to the movement, the hairspring is installed inside a machine, when the pressure source gives pressure to the C-shaped tube to deform the C-shaped tube, the C-shaped tube drives the movement to rotate through the transmission cooperation of the connecting rod, so that the pointer on the movement rotates, and when the C-shaped tube loses external acting force, the.

As can be seen from the structure of the above pressure gauge, the following problems still exist: the transmission structure formed by the C-shaped pipe, the connecting rod rivet, the connecting rod, the machine core rivet and the machine core is complex, the number of parts is large, the production process is complex, the manufacturing cost is increased, and particularly, the C-shaped pipe is easy to generate elastic fatigue and even cracks in the frequent use process, the structural stability is poor, so that the use performance and the service life of the pressure gauge are influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in that the transmission structure of overcoming the manometer among the prior art is complicated, and manufacturing cost is high to and the C venturi tube easily produces the tired crackle even of elasticity, influences product performance and life's problem.

In order to solve the technical problem, the utility model provides a pressure gauge structure, include:

The shell is connected with the joint and is provided with a vent pipeline communicated with the joint;

The movement is rotatably arranged on the shell and is provided with a pointer in a linkage manner;

the pressure driving device is arranged in the shell and comprises a tube core piece connected with the ventilation pipeline and a driving structure movably arranged in the tube core piece, and the driving structure is connected with the machine core through a window formed in the side wall of the tube core piece; the driving structure slides along the tube core piece and drives the movement to rotate when being acted by the air pressure on one side of the ventilation pipeline.

Preferably, the core piece is a hollow tubular structure, and the window is communicated with the inner cavity of the core piece and is arranged close to the movement.

Preferably, the driving structure includes a sliding block movably disposed in the barrel member, and a rack structure disposed on a side wall of the sliding block toward the window, and the movement is provided with a driven gear engaged with the rack structure.

Preferably, both ends of the core member are arranged in a closed structure, an air inlet pipe is formed on the side wall of one end of the core member in an extending manner, the air vent pipeline comprises a connecting port extending into the shell, and the air inlet pipe is suitable for being inserted into the connecting port.

As a preferred scheme, a convex rod is arranged at the other end of the sliding block, and a sealing ring in matched contact with the inner wall of the tube core piece is sleeved on the convex rod.

preferably, a return spring is arranged between the sliding block and the tube core piece, and the return spring drives the sliding block to move to the initial position when the sliding block does not have air pressure.

preferably, one end of the sliding block, which is far away from the air inlet pipe, is provided with a groove hole, one end of the return spring is arranged in the groove hole, and the other end of the return spring abuts against the other end of the core piece.

Preferably, a nut is detachably provided at the other end of the core member.

Preferably, the tube core member is fixed in the housing by a fixing structure, and the fixing structure includes at least one mounting boss disposed on a side wall of the tube core member, at least one mounting hole correspondingly disposed on the mounting boss and the housing, and a fastener fixed in the mounting hole.

As a preferred scheme, a mounting column is arranged in the shell, a positioning plate is arranged on the mounting column, and two ends of the movement are respectively positioned and rotatably arranged in the positioning plate and the positioning hole correspondingly formed in the shell.

Compared with the prior art, the technical scheme of the utility model have the following advantage:

1. In the pressure gauge structure provided by the utility model, the pressure driving device consisting of the tube core piece and the driving structure is arranged in the shell, the driving structure is connected with the machine core through the window arranged on the side wall of the tube core piece, when the air pressure enters the tube core piece from the joint along the vent pipeline, the driving structure is pushed to slide along the tube core piece and drive the movement to rotate, thereby driving the pointer to rotate to realize the function of pressure detection, the design has the advantages that the pressure driving device consisting of the tube core piece and the driving structure replaces the traditional C-shaped tube transmission mode, the product structure is simplified, the parts are reduced, the production process is simpler, the manufacturing cost is reduced, the pressure gauge is directly driven by the air pressure acting force in the tube core member according to the driving structure, the transmission sensitivity is high, no deformation problem is caused, the structural stability is good, and therefore the service performance and the service life of the pressure gauge are reliably improved.

2. the utility model provides an among the manometer structure, the drive structure includes the portable sliding block that sets up in the pipe chipware, and the orientation the window sets up the rack structure on the sliding block lateral wall, and this kind of structure sets up, can remove in the pipe core spare when the sliding block receives pressure effect, through rack structure and driven gear cooperation in order to drive the synchronous rotation of core to the realization turns into the rotary motion of core with the sliding block linear motion done in the pipe core spare, and transmission distance is short, and is efficient, and the cooperation transmission is reliable.

3. The utility model provides an among the manometer structure, the both ends of pipe chipware are the enclosed construction setting, play limiting displacement to the sliding block like this, prevent that the sliding block from deviating from the pipe core spare at the removal in-process to can realize the intercommunication of pipe chipware and vent line in inserting the connecting port through the intake pipe, simple to operate guarantees that gaseous exerting pressure effect to the sliding block in the pipe chipware is got into through the vent line.

4. The utility model provides an among the manometer structure, the drive structure is still including setting up the sliding block with reset spring between the pipe chipware, reset spring is in the driving is acted on the time to sliding block non-pressure the sliding block removes to initial position to realize the automatic re-setting function of sliding block, thereby drive the core and reset and rotate, ensure that the pointer can accurately return to zero.

5. the utility model provides an among the manometer structure, the pipe chipware is fixed in through fixed knot structure in the casing, during the installation, only need align the mounting hole of installation boss with the mounting hole of casing to be fixed in the mounting hole through the fastener with the relative mounted position between keeping pipe chipware and the casing fixed, the cooperation is fixed reliable, simple to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic view of a three-dimensional structure of a pressure gauge structure provided by the present invention;

FIG. 2 is a schematic structural view of the pressure gauge of the present invention after the positioning plate is hidden;

Figure 3 is a schematic view of the mounting arrangement of the housing and cartridge of figure 1;

fig. 4 is a schematic structural view of the pressure driving device of the present invention;

fig. 5 is a schematic structural view of the driving structure of the present invention;

Description of reference numerals: 1-shell, 11-ventilation pipeline, 12-connecting port, 13-mounting hole, 14-mounting column, 15-positioning plate, 2-movement, 21-driven gear, 3-joint, 4-tube core piece, 41-window, 42-air inlet pipe, 43-screw cap, 44-mounting boss, 5-driving structure, 51-sliding block, 511-convex rod, 512-groove hole and 52-rack structure.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

The present embodiment provides a pressure gauge structure as shown in fig. 1 to 5, including:

The shell 1 is connected with the joint 3, and is provided with a vent pipeline 11 communicated with the joint;

the movement 2 is rotatably arranged in the shell 1 and is provided with a pointer in a linkage manner;

The pressure driving device is arranged in the shell 1 and comprises a tube core piece 4 connected with the ventilation pipeline 11 and a driving structure 5 movably arranged in the tube core piece 4, and the driving structure 5 is connected with the movement 2 through a window 41 formed in the side wall of the tube core piece 4; the driving structure 5 slides along the core member 4 and drives the movement 2 to rotate when subjected to the gas pressure on the side of the ventilation pipeline 11.

The above embodiment is the core technical solution of this embodiment, a pressure driving device composed of a tube core member 4 and a driving structure 5 is installed in a housing 1, the driving structure 5 is connected with a movement 2 through a window formed on a side wall of the tube core member 4, when air pressure enters the tube core member from a joint along a vent line, the driving structure 5 is pushed to slide along the tube core member and drive the movement to rotate, thereby driving a pointer to rotate to realize the pressure detection function, and the design has the advantages that the pressure driving device composed of the tube core member and the driving structure is adopted to replace the traditional C-shaped tube transmission mode, so as to simplify the product structure, reduce the parts, simplify the production process, reduce the manufacturing cost, and be directly driven by the air pressure acting force in the tube core member according to the driving structure 5, the transmission sensitivity is high, no deformation problem is generated, and the structural stability is good, thereby reliably promoting the performance and the life of manometer.

In this embodiment, the tube core member 4 is a hollow tubular structure, so that the driving structure makes a linear motion inside the tube core member, the window 41 is communicated with the inner cavity of the tube core member 4 and is disposed close to the movement 2, as shown in fig. 2, so that the movement 2 vertically passes through the upper and lower sides of the window 41, that is, the movement 2 is partially accommodated in the window 41 and is suitable for being connected with the driving structure inside the tube core member in a matching manner, the connection distance is shortened, and the matching transmission is reliable.

As a preferred embodiment, the two ends of the core member 4 are arranged in a closed structure, so that the movement of the driving structure 5 is limited, and the driving structure is prevented from being separated from the core member during the movement, wherein an air inlet pipe 42 is formed on the side wall of one end of the core member 4 in an extending manner, the vent pipeline 11 includes a connecting port 12 extending into the housing, and the communication between the core member and the vent pipeline can be realized by inserting the air inlet pipe 42 into the connecting port 12, so that the installation is convenient, and it is ensured that air enters the core member through the vent pipeline to exert a pressure effect on the sliding block.

In order to facilitate the installation of the driving structure in the tube core member, as shown in fig. 4, the other end of the tube core member 4 is detachably provided with a nut 43, and correspondingly, the other end of the tube core member 4 is provided with a thread structure which is matched and fixed with the nut, so that an installation space can be reserved only by opening the nut, and the driving structure can be installed in the tube core member or can be taken out from the tube core member for replacement and maintenance.

The specific arrangement of the driving structure is described in detail below with reference to fig. 2-5:

Drive structure 5 including portable set up in sliding block 51 in the tube core piece 4, and the orientation window 41 set up in rack structure 52 on the sliding block 51 lateral wall, be provided with on the core 2 with rack structure 52 complex driven gear 21, the sliding block is roughly cylindricly, also can other structural shapes, can be fit for slide in the tube core piece can, through the above-mentioned structural configuration, work as sliding block 51 receives the pressure to be in can when acting on the tube core piece 4 removes, through rack structure and driven gear cooperation in order to drive core 2 synchronous revolution to the realization turns into the rotary motion of core 2 with the linear motion that sliding block 51 was in the tube core piece, and the driving distance is short, and is efficient, and the cooperation transmission is reliable.

Further preferably, the driving structure 5 further includes a return spring (a return spring is not shown in the drawings) disposed between the sliding block 51 and the barrel element 4, and the return spring drives the sliding block 51 to move to an initial position when the sliding block 51 is not under pressure, so as to realize an automatic return function of the sliding block, thereby driving the movement to return to rotation, and ensuring that the pointer can return to zero accurately.

As a specific structural configuration, the other end of the sliding block 51 is provided with a groove hole 512, one end of the return spring is disposed in the groove hole 512, the other end of the return spring abuts against the other end of the tube core member 4, and the return spring can be positioned and mounted through the groove hole, so that the return spring is prevented from being displaced in the deformation process.

With reference to fig. 5, a protruding rod 511 is disposed at one end of the sliding block 51 facing the air inlet pipe 42, a sealing ring (not shown) contacting with the inner wall of the pipe core member 4 is sleeved on the protruding rod 54, and the protruding rod 411 and the sealing ring are set according to the moving distance of the sliding block 51 in the pipe core member, so as to ensure that the protruding rod 411 and the sealing ring do not reach the window position when the sliding block 51 moves, thereby avoiding air leakage.

in this embodiment, as shown in fig. 3 to 4, the core member 4 is fixed in the housing 1 by a fixing structure, the fixing structure includes at least one mounting boss 44 disposed on the sidewall of the core member 4, and at least one mounting hole 13 correspondingly disposed in the mounting boss 44 and the housing 1, and a fastener fixed in the mounting hole, the fastener may preferably be a screw, and during installation, only the mounting hole of the mounting boss 44 needs to be aligned with the mounting hole 13 of the housing 1 and fixed in the mounting hole by the fastener to keep the relative installation position between the core member 4 and the housing 1 fixed, so that the fitting and fixing are reliable and the installation is convenient.

Referring to fig. 1-2, a mounting post 14 is arranged in the housing 1, a positioning plate 15 is arranged on the mounting post 14, and two ends of the movement 2 are respectively positioned and rotatably arranged in the positioning plate 15 and a positioning hole formed in the housing 1 correspondingly, so that the movement 2 is positioned and rotated in the housing without shaking and deflection, the transmission effect is better, and the structural stability is good. In this embodiment, the housing 1 includes a base and a case, the case is provided with a scale value which is used for indicating the pressure in cooperation with the pointer, and the pressure driving device and the ventilation pipeline are both arranged on the base.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A pressure gauge structure, comprising:

The shell (1) is connected with the joint (3), and is provided with a vent pipeline (11) communicated with the joint;

The movement (2) is rotatably arranged in the shell (1) and is provided with a pointer in a linkage manner;

The pressure driving device is arranged in the shell (1) and comprises a tube core piece (4) connected with the ventilation pipeline (11) and a driving structure (5) movably arranged in the tube core piece (4), and the driving structure (5) is connected with the movement (2) through a window (41) formed in the side wall of the tube core piece (4); the driving structure (5) slides along the tube core piece (4) and drives the movement (2) to rotate when being acted by the gas pressure at one side of the ventilation pipeline (11).

2. a pressure gauge arrangement according to claim 1, wherein: the tube core piece (4) is of a hollow tubular structure, and the window (41) is communicated with the inner cavity of the tube core piece (4) and is arranged close to the movement (2).

3. a pressure gauge arrangement according to claim 2, wherein: the driving structure (5) comprises a sliding block (51) movably arranged in the tube core piece (4) and a rack structure (52) arranged on the side wall of the sliding block (51) towards the window (41), and a driven gear (21) matched with the rack structure (52) is arranged on the movement (2).

4. a pressure gauge arrangement according to claim 3, wherein: the two ends of the core piece (4) are arranged in a closed structure, an air inlet pipe (42) is formed in the side wall of one end of the core piece in an extending mode, the air pipeline (11) comprises a connecting port (12) extending into the shell, and the air inlet pipe (42) is suitable for being inserted into the connecting port (12).

5. a pressure gauge arrangement according to claim 4, wherein: slider (51) orientation be provided with nose bar (511) on the one end of intake pipe (42), the cover is equipped with on nose bar (511) with the sealing washer of tub chip spare (4) inner wall cooperation contact.

6. a pressure gauge structure according to any of claims 3-5, characterized in that: the driving structure (5) further comprises a return spring arranged between the sliding block (51) and the tube core piece (4), and the return spring drives the sliding block (51) to move to the initial position when the sliding block (51) does not have gas pressure.

7. A pressure gauge arrangement according to claim 6, wherein: the other end of the sliding block (51) is provided with a groove hole (512), one end of the return spring is arranged in the groove hole (512), and the other end of the return spring is abutted against the other end of the tube core piece (4).

8. A pressure gauge arrangement according to claim 7, wherein: and a nut (43) is detachably arranged at the other end of the tube core piece (4).

9. a pressure gauge arrangement according to claim 7 or 8, wherein: the tube core piece (4) is fixed in the shell (1) through a fixing structure, and the fixing structure comprises at least one mounting boss (44) arranged on the side wall of the tube core piece (4), at least one mounting hole (13) correspondingly arranged in the mounting boss (44) and the shell (1), and a fastener fixed in the mounting hole.

10. A pressure gauge arrangement according to claim 9, wherein: the novel positioning machine is characterized in that a mounting column (14) is arranged in the shell (1), a positioning plate (15) is arranged on the mounting column (14), and two ends of the machine core (2) are respectively positioned and rotatably arranged in the positioning plate (15) and a positioning hole formed in the shell (1) correspondingly.