TWM652795U - Transmission structure of double-sided pressure gauge - Google Patents

Abstract

The transmission structure of a double-sided pressure gauge includes a bottom block and two transmission groups installed on the bottom block in opposite directions. There is an opening on the bottom surface of the bottom block, and a channel extends to the center of the bottom block. There are holes on the left and right sides of the bottom block, and the two holes are not corresponding and are connected to the channel respectively. The two transmission groups are connected to one of the holes in the bottom block by a Baden tube. Each transmission group includes two clips, gears, coil springs, swing arms and connecting rods. The two clips are arranged in parallel and connected to each other by the upper crossbar and the lower crossbar. The gear is located between the two clamping pieces, and a central shaft penetrates the gear, and both ends of the central shaft are connected to the two clamping pieces respectively. The coil spring is installed on the central axis. The swing arm is pivoted between the two clips, and one end of the swing arm has sector-shaped teeth that mesh with the gear. One end of the connecting rod is pivoted on the swing arm, and the other end is connected to the Baden tube.

Description

Transmission structure of double-sided pressure gauge

The present invention relates to a pressure gauge structure, and in particular to a pressure gauge transmission structure with double-sided display.

Pressure gauges that are generally used to measure the hydraulic or pneumatic pressure of machines or machinery mostly have a single-sided display, that is, they can only be observed from one direction. However, sometimes operators need to move back and forth on both sides of the machine or machine during operation. To facilitate operation, double-sided pressure gauges with pointers on both sides to indicate pressure have gradually been developed.

A common pressure gauge with double-sided display is to install pointers at both ends of the central axis running through a single gear to achieve the purpose. However, since both hands are driven by the rotation of the same gear, when viewed from the same side, the two hands rotate in the same direction. In other words, when the pointer is rotated clockwise when viewed from the front of the pressure gauge, when the other pointer is viewed from the back of the pressure gauge, it is shown to be rotating counterclockwise. In this way, it is easy for the operator to move the pressure gauge back and forth on both sides of the machine or machine during operation. If the operator does not carefully read the value on the dial behind the pointer, it is easy for the operator to get confused and misjudgment due to habit.

Therefore, one aspect of the present invention is to provide a double-sided display pressure gauge transmission structure, which uses a trifurcated channel to transmit gas or liquid pressure and simultaneously cause two different Baden tubes to deform to drive the reversely set transmission group gears to rotate respectively. This in turn drives the pointer of the pressure gauge to rotate. In this way, when the pointer is rotated clockwise when viewed from one side of the pressure gauge, the other pointer will also be shown to be rotating clockwise when viewed from the other side of the pressure gauge, thereby reducing the operator's ability to move back and forth on both sides of the machine or machine during operation. When observing the pressure gauge, confusion and misjudgment may occur due to habit.

According to an embodiment of the present invention, a transmission structure of a double-sided pressure gauge includes a bottom block and two transmission groups installed on the bottom block in opposite directions. There is an opening on the bottom surface of the bottom block, and a channel extends to the center of the bottom block. Holes are respectively provided on the left and right sides of the bottom block, and the two holes are not corresponding and are connected to the channel respectively. The two transmission groups are connected to one of the holes in the bottom block by a Baden tube. Each transmission group includes two clips, gears, coil springs, swing arms and connecting rods. The two clips are arranged in parallel and connected to each other by the upper crossbar and the lower crossbar. The gear is located between the two clamping pieces, and a central shaft penetrates the gear, and both ends of the central shaft are connected to the two clamping pieces respectively. The coil spring is installed on the central axis. The swing arm is pivoted between the two clips, and one end of the swing arm has sector-shaped teeth that mesh with the gear. One end of the connecting rod is pivoted on the swing arm, and the other end is connected to the Baden tube.

According to an embodiment of the present invention, two holes are respectively provided on the right side of the left and right sides.

100:Double-sided pressure gauge

102:Pointer

200: Transmission structure

210: Bottom block

212:Open your mouth

214:Channel

217, 218: Hole

220, 230: Transmission group

221a, 221b, 231a, 231b: clip

222, 232: Gear

223, 233: Coil spring

224, 234: Swing arm

225, 235: connecting rod

226, 236: Upper crossbar

227:Lower crossbar

228, 238: central axis

229, 239: sector teeth

240, 250: Baden pipe

To make the above and other objects, features, advantages and embodiments of the present invention more clearly understandable, the accompanying drawings are explained as follows:

Figure 1 is a perspective view of the appearance of a double-sided pressure gauge according to an embodiment of the present invention;

Figure 2 is an exploded view of the double-sided pressure gauge in Figure 1;

Figure 3A is a perspective view before the base block in Figure 2;

Figure 3B is a side perspective view of the base block in Figure 2; and

Figure 4 is an assembled perspective view of the transmission structure of Figure 2.

Figure 1 is a perspective view of the appearance of a double-sided pressure gauge according to an embodiment of the present invention, and Figure 2 is an exploded view of the double-sided pressure gauge in Figure 1. Please refer to Figures 1 and 2 , a transmission structure 200 of a double-sided pressure gauge 100, including a bottom block 210 and two transmission groups 220 and 230. In this embodiment, the side with the transmission group 230 is defined as the front side, but this is not intended to limit the present invention.

Figures 3A and 3B respectively illustrate a front perspective view and a side perspective view of the bottom block 210 in Figure 2 . Please see Figure 3A and Figure 3B. There is an opening 212 on the bottom surface of the bottom block 210, and a channel 214 extends to the center of the bottom block 210. Holes 217, 218 are respectively provided on the left and right sides of the bottom block. The holes 217, 218 are non-corresponding and are connected to the channel 214 respectively. Thereby, the channels 214, The two holes 217 and 218 form a trifurcated structure connected in the bottom block 210, as shown in Figure 3A. The so-called non-correspondence of the holes 217 and 218 means that the holes 217 and 218 are dislocated, that is, the side facing them is located on the right side. In other words, the hole 217 is located on the right side of the right side, and the hole 218 is located on the left side. Face to the right, as shown in Figures 2 and 3B.

Figure 4 is an assembled perspective view of the transmission structure of Figure 2. Please refer to Figure 2 and Figure 4 at the same time. The two transmission groups 220 and 230 are installed on the bottom block 210 in opposite directions, and are connected to the holes 217 and 218 of the bottom block 210 by Baden tubes 240 and 250 respectively. The above-mentioned so-called two transmission groups 220 and 230 are reverse The directional arrangement means that the connection positions of the two transmission groups 220 and 230 and the Baden tubes 240 and 250 are respectively located on the left and right of one of the bottom blocks 210, as shown in Figure 4.

The transmission group 220 includes two clips 221a and 221b, a gear 222, a coil spring 223, a swing arm 224, and a connecting rod 225. The two clips 221a and 221b are arranged in parallel, and the upper crossbar 226 and the lower crossbar 227 are connected to each other. The gear 222 is located between the two clamping pieces 221a and 221b, and has a central shaft 228 passing through the gear 222, and both ends of the central shaft 228 are connected to the two clamping pieces 221a, 221b respectively. One end of the central shaft 228 protrudes from the clamping piece 221a and is connected to a pointer (not shown). ) connection. The coil spring 223 is installed on the central axis 228. The swing arm 224 is pivoted between the two clips 221a and 221b, and one end of the swing arm 224 has sector teeth 229 that mesh with the gear 222. One end of the connecting rod 225 is pivoted on the swing arm 224, and the other end is connected to the Baden tube 240.

The transmission group 230 includes two clips 231a and 231b, a gear 232, a coil spring 233, a swing arm 234, and a connecting rod 235. The connection method is similar to the above-mentioned transmission group 220. The difference is that the upper cross bar 236 and the lower cross bar of the two clamping pieces 231a and 231b are connected to each other. The central shaft 238 penetrates the gear 232, and the two ends of the central shaft 238 are respectively connected to the two clamping pieces 231a. , 231b, in which one end of the central shaft 238 protrudes from the clip 231a and is connected with the pointer 102. One end of the connecting rod 235 is pivoted to the swing arm 234, and the other end is connected to the Baden tube 250.

When the double-sided pressure gauge 100 equipped with the transmission structure 200 of the present invention is used for measurement, the gas or liquid of the object to be measured enters the opening 212 of the bottom block 210 and passes through the channel 214 through the holes 217 and 218 to form the Baden tube 240 connected thereto. , 250 is deformed, and the sector teeth 229 and 239 on the connecting rods 225 and 235 and the swing arms 224 and 234 respectively drive the gears 222 and 232 on the reversely arranged transmission groups 220 and 230 to rotate, and then drive the two wheels through the central shafts 228 and 238. The pointer of the surface pressure gauge 100 rotates. According to the characteristics of liquid and gas, the two Baden tubes are subjected to the same pressure, so the deformation of the Baden tubes is consistent, so that the pointers displayed on both sides of the pressure gauge swing at the same amplitude.

Furthermore, since the two transmission groups 220 and 230 of the transmission structure 200 of the present invention are arranged in opposite directions, the gears 222 and 232 driven by them respectively rotate in opposite directions when viewed from the same side. In other words, according to an embodiment of the present invention, when the gas or liquid of the object to be measured enters the opening 212 of the bottom block 210 through the channel 214 and causes the Baden tubes 240 and 250 connected thereto to deform through the holes 217 and 218, the transmission group When viewed from the 230 side, the gear 232 on the transmission group 230 rotates clockwise, but the gear 222 on the transmission group 220 located at the rear rotates counterclockwise. When facing the side where the transmission group 220 is connected to the pointer, the gear 222 appears to rotate clockwise. The hour hand rotates. Therefore, the present invention uses two sets of reversely arranged transmission groups at the same time, so that when observing from either side of the double-sided pressure gauge 100 of the present invention, the pointer rotates clockwise, thus reducing the need for operators to have to worry about both sides of the machine or machine during operation. When observing the pressure gauge by moving it side to side, confusion may occur due to habit, resulting in misjudgment.

Although the present invention has been disclosed above through embodiments, they are not intended to limit the present invention. Anyone familiar with this art can make various modifications and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention is The scope shall be determined by the appended patent application scope.

100:Double-sided pressure gauge

102:Pointer

200: Transmission structure

210: Bottom block

217, 218: Hole

220, 230: Transmission group

221b, 231a, 231b: clip

222, 232: Gear

223, 233: Coil spring

224, 234: Swing arm

225, 235: connecting rod

226, 236: Upper crossbar

227:Lower crossbar

229: Sector tooth

240, 250: Baden pipe

Claims (2)

A transmission structure of a double-sided pressure gauge, including: A bottom block with an opening on the bottom surface and a channel extending toward the center of the bottom block. A hole is provided on the left and right sides of the bottom block, and the two holes are not corresponding and are connected to the channel respectively; and Two transmission groups are installed on the bottom block in opposite directions, and are respectively connected to one of the holes of the bottom block by a Baden tube. Each transmission group includes: Two clips are arranged in parallel and connected to each other by an upper crossbar and a lower crossbar; A gear is located between the two clamping pieces, with a central shaft penetrating the gear, and both ends of the central shaft are connected to the two clamping pieces respectively; A coil spring is installed on the central axis; A swing arm is pivoted between the two clips, and one end of the swing arm has a sector gear meshing with the gear; and A connecting rod has one end pivoted on the swing arm and the other end connected to the Baden tube. Such as the transmission structure of the double-sided pressure gauge of claim 1, wherein the two holes are respectively located on the right side of the side.

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