CN210322154U - Transmission structure of double-sided pressure gauge - Google Patents

Abstract

The utility model provides a transmission structure of two-sided manometer, it contains support, first and second gear, crown gear, two coil springs and swing arm. The bracket comprises a first clamping piece, a middle clamping piece and a second clamping piece which are sequentially arranged in parallel at intervals and are connected with the lower cross rod. The first gear is arranged between the first clamping piece and the middle clamping piece and penetrates through the first middle shaft, one end of the first middle shaft is connected with the middle clamping piece, and the other end of the first middle shaft penetrates through the first clamping piece; the second gear is arranged between the middle clamping piece and the second clamping piece and penetrates through the second middle shaft, one end of the second middle shaft is connected with the middle clamping piece, and the other end of the second middle shaft penetrates through the second clamping piece. The first middle shaft and the second middle shaft are positioned at the same horizontal height but are not connected. The crown gear is engaged with the first and second gears. Two coil springs are mounted on the first and second central shafts. The swing arm is pivoted between the first or second clamping piece and the middle clamping piece, one end of the swing arm is provided with a sector gear meshed with the first or second gear, and the other end of the swing arm comprises a connecting rod connected with the bourdon tube. The utility model discloses reducible operating personnel produces the situation of obscuring the emergence misjudgement.

Description

Transmission structure of double-sided pressure gauge

Technical Field

The present invention relates to a pressure gauge structure, and more particularly to a transmission structure of a pressure gauge with double-sided display.

Background

The transmission structure of the known pressure gauge at present is mostly that one end of the swing arm is utilized to have a connecting rod to connect the bourdon tube, and the other end of the swing arm is provided with a sector gear row to be meshed with a single gear, and the pointer is arranged at one end of a central shaft penetrating through the gear. When the pressure of the liquid or gas to be measured changes to cause the deformation of the bourdon tube, the connecting rod of the swing arm is driven to cause the swing arm to pivot, the sector gear row of the swing arm is driven to rotate the gear, and the middle shaft rotates to cause the pointer to rotate to indicate the pressure value.

The pressure gauge for measuring hydraulic pressure or air pressure of a machine or machinery is usually displayed on a single side, i.e. only can be observed from a single direction. However, sometimes an operator needs to move back and forth on both sides of a machine table or a machine during operation, so as to facilitate the operation, a double-sided pressure gauge with a pointer on both sides for indicating pressure is gradually developed.

A common pressure gauge with double-sided display is provided with pointers at two ends of a center shaft penetrating through a single gear. However, since both hands are driven by the same gear, the hands rotate in the same direction when viewed from the same direction. In other words, when the pointer is observed clockwise from the front of the pressure gauge, the pointer is observed counterclockwise from the back of the pressure gauge. Therefore, when an operator moves back and forth to observe the pressure gauge on both sides of the machine or machine during operation, if the operator does not carefully interpret the numerical value of the dial behind the pointer, confusion and erroneous judgment are easily caused due to habituation.

SUMMERY OF THE UTILITY MODEL

Therefore, an aspect of the present invention is to provide a transmission structure of a pressure gauge with double-sided display, wherein the pointer of the pressure gauge is driven to rotate by different gears respectively, and the middle shafts of the two gears are not connected to each other, and the crown gear transmits the rotation of one gear to another gear, so that the rotation directions of the two gears are opposite by the crown gear. Therefore, when one side of the pressure gauge observes that the pointer rotates clockwise, the other side of the pressure gauge observes that the other pointer rotates clockwise, and therefore the situation that confusion is generated and misjudgment is caused when an operator moves back and forth on the machine table or two sides of machinery to observe the pressure gauge during operation is reduced.

According to the utility model discloses an embodiment, a transmission structure of two-sided manometer contains support, first gear, second gear, crown gear, two coil springs and swing arm. The support comprises a first clamping piece, a middle clamping piece and a second clamping piece which are arranged in parallel at intervals in sequence and are connected with the upper cross rod and the lower cross rod. The first gear is positioned between the first clamping piece and the middle clamping piece and penetrates through the first middle shaft, one end of the first middle shaft is connected with the middle clamping piece, and the other end of the first middle shaft penetrates through the first clamping piece; the second gear is located between the middle clamping piece and the second clamping piece and penetrates through the second middle shaft, one end of the second middle shaft is connected with the middle clamping piece, the other end of the second middle shaft penetrates through the second clamping piece, and the first middle shaft and the second middle shaft are located at the same horizontal height but are not connected. The crown gear is simultaneously engaged with the first gear and the second gear. The two coil springs are respectively arranged on the first middle shaft and the second middle shaft. The swing arm is pivoted between the first clamping piece or the second clamping piece and the middle clamping piece, one end of the swing arm is provided with a sector gear which is meshed with the first gear or the second gear, and the other end of the swing arm comprises a connecting rod which is connected with the bourdon tube.

According to an embodiment of the present invention, the first clamping piece is located in front of the middle clamping piece.

Drawings

In order to make the above and other objects, features, advantages and embodiments of the present invention more comprehensible, the following description of the drawings is given:

fig. 1 is a front view illustrating a transmission structure of a double-sided pressure gauge according to an embodiment of the present invention;

FIG. 2 is a perspective view of the transmission structure of the double-sided pressure gauge of FIG. 1;

FIG. 3 is a left side view of the gearing structure of the double-sided pressure gauge of FIG. 1;

FIG. 4 is another perspective view of the transmission structure of the double-sided pressure gauge of FIG. 1; and

fig. 5 is a front view of the transmission structure of the double-sided pressure gauge of fig. 1.

Detailed Description

Referring to fig. 1 and fig. 2, wherein fig. 1 is a front view of a transmission structure 100 of a double-sided pressure gauge according to an embodiment of the present invention, and fig. 2 is a schematic perspective view of the transmission structure of the double-sided pressure gauge shown in fig. 1. The transmission structure 100 of the double-sided pressure gauge comprises a bracket 110, a first gear 120, a second gear 130, a crown gear 140, two coil springs 150 and 160, and a swing arm 170. The transmission structure 100 of the double-sided pressure gauge is installed in a pressure gauge (not shown) capable of displaying on both sides, a known Bourdon-tube (Bourdon-tube)200 is connected to one end of the swing arm 170, and the pressure value is indicated by using the change of the air pressure or hydraulic pressure of the object to be measured to cause the deformation of the Bourdon-tube 200 and the swing arm 170 to drive the gear to rotate, as shown in fig. 1.

Referring to fig. 2, the bracket 110 includes a first clamping piece 112, a middle clamping piece 114, and a second clamping piece 116, which are sequentially arranged in parallel at intervals and connected to an upper cross bar 118 and a lower cross bar 119. The three clamping pieces 112, 114, 116 are all L-shaped, and according to an embodiment of the present invention, the three L-shaped clamping pieces are all facing to the right side and arranged in parallel from front to back at intervals in the order of the first clamping piece 112, the middle clamping piece 114, and the second clamping piece 116, thereby defining the first clamping piece 112 as the front side and the second clamping piece 116 as the back side. However, this is merely an example of one embodiment of the present invention and is not intended to limit the scope of the present invention. In another embodiment, the three L-shaped clips may all face to the left, with the first clip 112 defining the back side and the second clip 116 defining the front side.

Referring to fig. 2 and fig. 3, fig. 3 is a left side view of a transmission structure of the double-sided pressure gauge of fig. 1. The first gear 120 is located between the first jaw 112 and the middle jaw 114, and penetrates through the first middle shaft 122, and one end of the first middle shaft 122 is connected to the middle jaw 114, and the other end penetrates through the first jaw 112. A pressure gauge pointer (not shown) is mounted on the first central shaft 122 penetrating through the front clip 112, and a dial (not shown) is mounted between the pressure gauge pointer and the first clip 112, so that when the first gear 120 rotates to drive the first central shaft 122 to rotate, the pressure gauge pointer (not shown) is also driven to rotate to achieve the purpose of indicating the pressure value.

The second gear 130 is located between the middle clip 114 and the second clip 116, and penetrates through the second middle shaft 132, and one end of the second middle shaft 132 is connected with the middle clip 114, and the other end penetrates through the second clip 116, wherein the first middle shaft 122 and the second middle shaft 132 are located at the same horizontal height but are not connected. Another pressure gauge pointer (not shown) can be installed on the second central shaft 132 penetrating the second clamping piece 116, and a dial (not shown) is installed between the pressure gauge pointer (not shown) and the second clamping piece 116, so that when the second gear 130 rotates to drive the second central shaft 132 to rotate, the pressure gauge pointer (not shown) is also driven to rotate to achieve the purpose of indicating the pressure value.

Referring to fig. 2 to 5, fig. 4 is another perspective view illustrating a transmission structure of the double-sided pressure gauge of fig. 1, and fig. 5 is a front view illustrating the transmission structure of the double-sided pressure gauge of fig. 1. According to an embodiment of the present invention, the crown gear 140 is disposed on the left side of the bracket 110 and is engaged with the first gear 120 and the second gear 130 at the same time. Since the first central axle 122 and the second central axle 132 are located at the same horizontal height but are not connected, the rotation of the first gear 120 does not directly drive the second gear 130 to rotate through the first central axle and the second central axle. The utility model discloses a transmission structure 100 of two-sided manometer is meshing with first gear 120 and second gear 130 simultaneously for utilizing crown gear 140, transmits the rotation of first gear 120 to second gear 130, and sees through crown gear 140 for first gear 120 is the opposite direction rotation with second gear 130.

Referring to fig. 2, the coil spring 150 is installed on the first center shaft 122, and the coil spring 160 is installed on the second center shaft 132.

Please refer to fig. 2 and 5. According to an embodiment of the present invention, the swing arm 170 is pivotally disposed between the first clamping piece 112 and the middle clamping piece 114, and one end of the swing arm 170 has a sector gear 172 engaged with the first gear 120, as shown in fig. 3, i.e. the swing arm 170 and the crown gear 160 are respectively located at opposite sides of the bracket 110. The other end of the swing arm 170 includes a link 174 that is connected to a bourdon tube 200, as shown in fig. 2. According to another embodiment of the present invention, the swing arm is pivotally disposed between the second clamping piece and the middle clamping piece, and the sector gear of the swing arm is engaged with the second gear.

Please refer to fig. 2 to 5. In this embodiment, when the pressure of the liquid or gas to be measured causes the deformation of the bourdon tube 200 and the swing arm 170 is driven to swing through the connecting rod 174, the sector gear 172 at the other end of the swing arm 170 will drive the first gear 120 to rotate, and then the crown gear 140 will be engaged with the first gear 120 and the second gear 130 at the same time, so as to transmit the rotation of the first gear 120 to the second gear 130 and make the second gear 130 rotate. By the utility model discloses a when two-sided pressure gauge's drive structure 100 was openly (the front side) watched, when first gear 120 was clockwise rotation (the direction that fig. 3 arrow A shows promptly) because of swing arm 170's fan-shaped gear 172's interlock, can drive crown gear 140 and rotate along the direction that fig. 3 arrow C shows, borrow again by crown gear 140 interlock second gear 130 to rotate along the direction that fig. 3 arrow B shows, first gear 120 is the opposite direction rotation with second gear 130 promptly, at this moment, if change by the utility model discloses a when two-sided pressure gauge's drive structure 100 back (rear side) watched, second gear 130 also rotated for clockwise. Therefore, the pressure gauge with double-sided display can achieve the effect that the observation pointer rotates clockwise no matter in which direction, thereby reducing the situation that confusion caused by habituation occurs and misjudgment when an operator moves back and forth to observe pressure on the machine table or the two sides of machinery during operation.

Although the present invention has been described with reference to the above embodiments, it is to be understood that the invention is not limited thereto, and that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.

Description of reference numerals:

100: transmission structure

110: support frame

112: first clamping piece

114: middle clamping piece

116: second clamping piece

118: upper cross bar

119: bottom cross bar

120: first gear

122: first middle axle

130: second gear

132: second middle axle

140: crown gear

150. 160: coil spring

170: swing arm

172: sector gear

174: connecting rod

200: barden tube

A. B, C: arrows.

Claims (2)

1. The utility model provides a two-sided pressure gauge's transmission structure, its characterized in that, two-sided pressure gauge's transmission structure contains support, first gear, second gear, crown gear, two coil springs and swing arm, wherein:

the bracket comprises a first clamping piece, a middle clamping piece and a second clamping piece which are sequentially arranged in parallel at intervals and are connected with the upper cross rod and the lower cross rod;

the first gear is positioned between the first clamping piece and the middle clamping piece and penetrates through the first gear by a first middle shaft, one end of the first middle shaft is connected with the middle clamping piece, and the other end of the first middle shaft penetrates through the first clamping piece;

the second gear is positioned between the second clamping piece and the middle clamping piece, and penetrates through the second gear by a second middle shaft, one end of the second middle shaft is connected with the middle clamping piece, the other end of the second middle shaft penetrates through the second clamping piece, and the first middle shaft and the second middle shaft are positioned at the same horizontal height but are not connected;

the crown gear is simultaneously meshed with the first gear and the second gear;

the two coil springs are respectively arranged on the first middle shaft and the second middle shaft; and

the swing arm pivot locate first clamping piece or second clamping piece with between the clamping piece, just the one end of swing arm has sector gear, its with first gear or second gear engagement, the other end contains the connecting rod, and it is connected with the bourdon tube.

2. The transmission structure of a double-sided pressure gauge according to claim 1, wherein the first jaw is located in front of the middle jaw.

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