Transmission structure of double-sided pressure gauge

Abstract

The utility model discloses a transmission structure of a double-sided pressure gauge. The transmission structure comprises a bottom block and two transmission groups which are reversely arranged on the bottom block. The bottom surface of the bottom block is provided with an opening, a channel extends towards the center of the bottom block, and the left side surface and the right side surface of the bottom block are respectively provided with holes which do not correspond to each other and are respectively communicated with the channel. The two transmission sets are respectively connected with one hole of the bottom block through a Bourdon tube, and each transmission set comprises two clamping pieces, a gear, a coil spring, a swing arm and a connecting rod. And the two clamping pieces are arranged in parallel and are connected with each other through the upper cross rod and the lower cross rod. The gear is located between the two clamping pieces, a middle shaft penetrates through the gear, and the two ends of the middle shaft are connected to the two clamping pieces respectively. The coil spring is arranged on the middle shaft. The swing arm is pivoted between the two clamping pieces, and one end of the swing arm is provided with fan-shaped teeth meshed with the gear. One end of the connecting rod is pivoted to the swing arm, and the other end is connected to the Bourdon tube.

Description

Technical Field

[0001] The utility model relates to a pressure gauge structure, and in particular to a pressure gauge transmission structure with double-sided display. Background Art

[0002] Pressure gauges typically used to measure hydraulic or pneumatic pressure on machines and machinery often have single-sided displays, meaning they can only be viewed from a single direction. However, operators sometimes need to move back and forth between the two sides of a machine or machinery during operation. To facilitate this, double-sided pressure gauges with needles on both sides to indicate pressure have gradually been developed.

[0003] A common dual-view pressure gauge achieves this by mounting pointers on either end of a central axis running through a single gear. However, because both pointers are driven by the same gear, they appear to rotate in the same direction when viewed from the same side. In other words, if one pointer appears clockwise when viewed from the front of the gauge, the other pointer appears counterclockwise when viewed from the back. This can easily lead to confusion and misjudgment when operators move the gauge back and forth between machine tools or equipment, failing to carefully read the dial behind the pointer. Utility Model Content

[0004] Therefore, one aspect of the present invention provides a dual-sided pressure gauge transmission structure. This utilizes a three-pronged channel to transmit gas or liquid pressure, simultaneously causing deformation of two different Baden tubes to drive the rotation of oppositely positioned transmission gears, thereby driving the pressure gauge's pointer. Thus, if the pointer observed from one side of the pressure gauge shows clockwise rotation, the other pointer observed from the other side will also show clockwise rotation, thereby reducing the chance of operator confusion and misjudgment caused by habitually moving the pressure gauge back and forth between the two sides of a machine or instrument.

[0005] According to one embodiment of the present invention, a transmission structure of a double-sided pressure gauge includes: a bottom block with an opening on the bottom surface, a channel extending toward the center of the bottom block, a hole being respectively provided on the left and right side surfaces of the bottom block, and the two holes are non-corresponding and respectively communicate with the channels; and two transmission groups, mounted on the bottom block in opposite directions and connected to one of the holes of the bottom block by a Baden tube, each transmission group including: two clips, arranged in parallel and connected to each other by an upper cross bar and a lower cross bar; a gear located between the two clips, with a central axis passing through the gear, and the two ends of the central axis being respectively connected to the two clips; a coil spring mounted on the central axis; a swing arm, pivotally mounted between the two clips, and one end of the swing arm having a sector gear meshing with the gear; and a connecting rod, one end of which is pivotally mounted on the swing arm and the other end of which is connected to the Baden tube.

[0006] According to an embodiment of the present invention, the two holes are respectively disposed on the right side of the left and right sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] To make the above and other objects, features, advantages and embodiments of the present invention more apparent, the accompanying drawings are described as follows:

[0008] Figure 1 1 is a perspective view illustrating the appearance of a double-sided pressure gauge according to an embodiment of the present invention;

[0009] Figure 2 It is a drawing Figure 1 Exploded view of a double-sided pressure gauge;

[0010] Figure 3A It is a drawing Figure 2 Front perspective view of the bottom block;

[0011] Figure 3B It is a drawing Figure 2 a side perspective view of the bottom block; and

[0012] Figure 4 It is a drawing Figure 2 Combined three-dimensional diagram of the transmission structure.

[0013] Reference Signs List

[0014] 100: Double-sided pressure gauge

[0015] 102: Pointer

[0016] 200: Transmission structure

[0017] 210: Bottom block

[0018] 212: Opening

[0019] 214: Channel

[0020] 217, 218: Holes

[0021] 220, 230: Transmission group

[0022] 221a, 221b, 231a, 231b: Clips

[0023] 222, 232: Gear

[0024] 223, 233: Coil spring

[0025] 224, 234: Swing arm

[0026] 225, 235: Connecting rod

[0027] 226, 236: Upper bar

[0028] 227: Lower bar

[0029] 228, 238: Center axis

[0030] 229, 239: fan-shaped teeth

[0031] 240, 250: Baden pipe. DETAILED DESCRIPTION

[0032] Figure 1 The figure shows a three-dimensional view of a double-sided pressure gauge according to an embodiment of the present invention, and Figure 2 Illustration Figure 1 For an exploded view of a double-sided pressure gauge, see Figure 1 and Figure 2 A transmission structure 200 of a double-sided pressure gauge 100 includes 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.

[0033] Figure 3A and Figure 3B The system is shown separately Figure 2 Front and side perspective views of the bottom block 210. Figure 3A and Figure 3B The bottom surface of the bottom block 210 is provided with an opening 212, and a channel 214 extends toward the center of the bottom block 210. Holes 217 and 218 are respectively provided on the left and right sides of the bottom block. The holes 217 and 218 are non-corresponding and communicate with the channel 214 respectively. Thus, the channel 214 and the two holes 217 and 218 form a three-pronged structure in the bottom block 210. Figure 3A The so-called non-corresponding holes 217 and 218 refer to the fact that the holes 217 and 218 are staggered, that is, the sides facing them are both located at the right side. In other words, hole 217 is located at the right side of the right side, and hole 218 is located at the right side of the left side. Figure 2 and Figure 3B shown.

[0034] Figure 4 Illustration Figure 2 Combined three-dimensional diagram of the transmission structure. Please also refer to Figure 2 and Figure 4 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 so-called two transmission groups 220 and 230 are installed in opposite directions, which means that the connection positions of the two transmission groups 220 and 230 and the Baden tubes 240 and 250 are located on the left and right of the bottom block 210 respectively. Figure 4 shown.

[0035] Transmission assembly 220 includes two clips 221a and 221b, a gear 222, a coil spring 223, a swing arm 224, and a connecting rod 225. Clips 221a and 221b are arranged in parallel and connected by an upper crossbar 226 and a lower crossbar 227. Gear 222 is located between clips 221a and 221b, with a central axis 228 extending through gear 222. Central axis 228 is connected to clips 221a and 221b at both ends. One end of central axis 228 protrudes from clip 221a and is connected to a pointer (not shown). Coil spring 223 is mounted on central axis 228. Swing arm 224 is pivoted between clips 221a and 221b, and one end of swing arm 224 has sector teeth 229 that mesh with gear 222. Connecting rod 225 is pivoted to swing arm 224 at one end and connected to Baden tube 240 at the other end.

[0036] Transmission assembly 230 comprises two clips 231a and 231b, a gear 232, a coil spring 233, a swing arm 234, and a connecting rod 235. Its connection is similar to that of transmission assembly 220, except that the two clips 231a and 231b are interconnected by an upper crossbar 236 and a lower crossbar. A central axis 238 passes through gear 232, and both ends of central axis 238 are connected to the two clips 231a and 231b, respectively. One end of central axis 238 protrudes from clip 231a and connects to pointer 102. Connecting rod 235 has one end pivoted to swing arm 234 and the other end connected to Baden tube 250.

[0037] When measuring using the double-sided pressure gauge 100 equipped with the transmission structure 200 of the present invention, the gas or liquid to be measured enters the opening 212 of the base block 210, passes through the channel 214, and deforms the connected Baden tubes 240 and 250 through the holes 217 and 218. 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 oppositely arranged transmission groups 220 and 230 to rotate, which in turn drives the pointer of the double-sided pressure gauge 100 to rotate via the central shafts 228 and 238. Due to the characteristics of liquids and gases, the two Baden tubes are subjected to the same pressure, resulting in the same deformation of the Baden tubes, resulting in the pointers displayed on both sides of the pressure gauge swinging at the same amplitude.

[0038] Furthermore, because 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 rotate in opposite directions when viewed from the same side. In other words, according to one embodiment of the present invention, when the gas or liquid to be measured enters the opening 212 of the base block 210 and passes through the channel 214, the holes 217 and 218 cause the Baden tubes 240 and 250 connected thereto to deform. When viewed from the side of the transmission group 230, the gear 232 on the transmission group 230 rotates clockwise, while the gear 222 on the rear transmission group 220 rotates counterclockwise. When viewed from the side of the transmission group 220 connected to the pointer, the gear 222 appears to rotate clockwise. Therefore, the present invention utilizes two sets of transmission groups arranged in opposite directions 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, thereby reducing the situation where the operator is confused and misjudged due to habit when moving back and forth between the two sides of the machine or machinery to observe the pressure gauge during operation.

[0039] Although the present invention has been disclosed with reference to the embodiments, they are not intended to limit the present invention. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A transmission structure of a double-sided pressure gauge, characterized in that: Include: A bottom block having an opening on its bottom surface, a passage extending toward the center of the bottom block, and a hole formed on each of the left and right sides of the bottom block, wherein the two holes are non-corresponding and communicate with the passage respectively; and Two transmission groups are mounted on the bottom block in opposite directions and are connected to one of the holes of the bottom block by a Baden tube respectively. 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 located between the two clips, with a central shaft passing through the gear, and two ends of the central shaft connected to the two clips respectively; a coil spring mounted on the central axis; a swing arm pivotally disposed between the two clips, and having a sector gear at one end thereof, meshing with the gear; and A connecting rod has one end pivotally mounted on the swing arm and the other end connected to the Baden tube.

2. The transmission structure of the double-sided pressure gauge according to claim 1, characterized in that: The two holes are respectively arranged at the right side of the side.

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