High-stability pressure gauge movement

Abstract

The utility model relates to pressure gauge technical field discloses a high stability pressure gauge movement, including pressure gauge movement main part and protection shell, the back of protection shell is embedded with the anti -leakage rubber sleeve, the utility model, through being equipped with soft rubber pipe, the influence to pressure gauge movement main part is smaller when vibrating, and the pressure gauge movement main part plays the sealing protection effect by protection shell, and the pressure gauge movement main part is protected and supported by the elastic support of transverse buffer and telescopic elastic buffer, and the external communication pipe is inserted and filled in the inner side of anti -leakage rubber sleeve, and the double anti -leakage cover further plays the anti -leakage sealing effect to the joint, and the front sealing of protection shell is installed with high -transparency toughened cover, can by external direct observation internal pressure change, make the device have better multidirectional shock attenuation protection capacity, and high stability protection capacity is good, and can double -sealed leak -proof, and high -quality protection effect is excellent, and stable performance is good.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, and in particular to a high-stability pressure gauge movement. Background Technology

[0002] Pressure gauges are crucial measuring instruments used in industrial production and equipment maintenance to measure fluid pressure. They monitor pressure changes in media such as gases and liquids in real time, providing data support for safe system operation. The pressure gauge movement, as the core functional component, mainly consists of a gear transmission mechanism, pointer shaft, and hairspring. It converts the mechanical displacement generated by the deformation of an elastic element (such as a Bourdon tube) into the rotational motion of the pointer, ultimately achieving a visual display of the pressure value. High-stability protection for the pressure gauge movement refers to reducing the impact of external environmental factors (such as vibration, impact, and media leakage) on the movement components through structural design, material selection, or protective measures. This ensures that the movement's transmission accuracy is not disturbed, thereby guaranteeing the long-term stable metrological performance of the pressure gauge.

[0003] In existing technologies, the high stability protection of pressure gauge movements mostly relies on simple outer shell structures for basic protection. This involves isolating the movement from the external environment using a metal or plastic shell to prevent dust and impurities from directly contacting it. However, in actual use, when subjected to impact vibration or high-frequency vibration, simple shells cannot effectively buffer vibration energy. High-frequency vibrations are directly transmitted to the gear transmission mechanism and hairspring assembly inside the movement, leading to increased gear meshing clearance and abnormal elastic deformation of the hairspring. Long-term use can easily cause a decrease in the transmission accuracy of the movement or even damage to components. The multi-angle shock absorption and vibration protection capabilities of the device are insufficient, resulting in poor high stability protection. Furthermore, the sealing protection performance at the connection point between the movement and the protective shell is not good enough, and the leakage protection performance is insufficient. This cannot meet the requirements of scenarios with high pressure monitoring accuracy, seriously affecting the high stability operation performance of the pressure gauge movement. Therefore, we propose a high-stability pressure gauge movement to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a highly stable pressure gauge movement to solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-stability pressure gauge movement includes a pressure gauge movement body and a protective shell, wherein a leak-proof rubber sleeve is embedded on the back of the protective shell; The back of the pressure gauge movement body is provided with an external connecting pipe inserted into the leak-proof rubber sleeve. The back of the protective shell is provided with a double leak-proof cover that is fitted onto the leak-proof rubber sleeve and the external connecting pipe. An installation protection ring is provided at the outer edge of the pressure gauge movement body. The upper and lower sides of the inside of the protective shell are provided with transverse buffers. The upper and lower sides of the installation protection ring are provided with telescopic elastic buffers connected to the corresponding transverse buffers. A soft rubber tube is provided between the pressure gauge movement body and the external connecting pipe. A high-transparency tempered glass cover plate is sealed on the front of the protective shell.

[0006] Preferably, a leak-proof mounting ring is embedded in the back of the protective shell, the leak-proof rubber sleeve is filled inside the leak-proof mounting ring, and the two outer ends of the leak-proof rubber sleeve are respectively filled and attached to the two ends of the leak-proof mounting ring. The leak-proof rubber sleeve is an elastic rubber tube.

[0007] Preferably, the two ends of the soft rubber tube are respectively connected to the external connecting pipe and the pressure gauge movement body. The external connecting pipe is inserted into the leak-proof rubber sleeve. The two ends of the external connecting pipe are located inside and outside the protective shell, respectively. Both ends of the external connecting pipe are provided with leak-proof protrusions, and the two leak-proof protrusions abut against the two ends of the leak-proof rubber sleeve.

[0008] Preferably, the leak-proof rubber sleeve is externally fitted with a threaded outer tube, the double leak-proof cover is threaded onto the outside of the threaded outer tube, and the inner ring of the double leak-proof cover is provided with a second leak-proof tube, which is fitted and sealed onto the outside of the external connecting pipe.

[0009] Preferably, the mounting protective ring is installed in a ring shape on the outside of the pressure gauge movement body, and an anti-collision protective ring is embedded in the outer ring of the mounting protective ring. The two telescopic elastic buffers are respectively fixedly installed on the upper and lower sides of the mounting protective ring, and the protective shell is a metal waterproof shell.

[0010] Preferably, the lateral buffer includes lateral support rods, lateral moving blocks, and lateral protective springs. Two lateral support rods are fixedly installed on the upper and lower sides inside the protective housing. Two lateral moving blocks are slidably sleeved on the two lateral support rods. Four lateral protective springs are sleeved on the two lateral support rods. Two adjacent lateral protective springs are fixed to the two ends of the lateral moving blocks. The telescopic elastic buffer is fixedly installed on the lateral moving blocks.

[0011] Preferably, the telescopic elastic buffer includes an L-shaped fixing rod, a vertical protective spring, and a vertical bearing plate. The vertical bearing plate is fixedly installed on the transverse buffer. The L-shaped fixing rod is bolted to the upper and lower sides of the mounting protective ring. The top end of the L-shaped fixing rod is slidably inserted into the vertical bearing plate. The vertical protective spring is sleeved on the body of the L-shaped fixing rod. The two ends of the vertical protective spring are fixedly connected to the L-shaped fixing rod and the vertical bearing plate, respectively.

[0012] Preferably, the high-transparency tempered glass cover includes a leak-proof protective cover and high-transparency tempered glass, wherein the leak-proof protective cover is threaded and sealed to the front of the protective shell, and the high-transparency tempered glass is embedded and installed inside the leak-proof protective cover.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This high-stability pressure gauge movement utilizes a flexible rubber tube between the external connecting pipe and the main body of the pressure gauge movement. This flexible connection minimizes the impact on the main body of the pressure gauge movement when the protective shell or external connecting pipe experiences impact or vibration. The main body of the pressure gauge movement is sealed and protected by the protective shell. The lateral buffer provides cushioning protection against lateral impacts, while the telescopic elastic buffer provides cushioning protection against vertical impacts. This combination of lateral buffer and telescopic elastic buffer provides elastic protection and support for the main body of the pressure gauge movement, giving the device excellent multi-directional shock absorption and high stability protection capabilities.

[0014] 2. This high-stability pressure gauge mechanism achieves a leak-proof seal by inserting an external connecting pipe into the inside of a leak-proof rubber sleeve. The back of the protective shell has a double leak-proof cover that fits onto the leak-proof rubber sleeve and the external connecting pipe, further sealing the joints and providing a double sealing effect. The front of the protective shell is sealed with a high-transparency tempered glass cover, allowing for direct observation of internal pressure changes within the pressure gauge mechanism. It offers excellent pressure and impact resistance, providing double-seal leak protection, high-quality protection, and good operational stability. Attached Figure Description

[0015] Figure 1 This utility model provides a frontal perspective three-dimensional schematic diagram of a high-stability pressure gauge movement; Figure 2 This utility model provides a rear-view perspective view of a high-stability pressure gauge movement. Figure 3 This utility model provides a three-dimensional side view sectional diagram of a high-stability pressure gauge movement; Figure 4 This utility model Figure 3 Enlarged view of structure A; Figure 5This is a three-dimensional front view of the protective shell and high-transparency tempered glass cover of this utility model after removal. Figure 6 This is a rear-view perspective view of the pressure gauge mechanism and the soft rubber tube of this utility model.

[0016] In the diagram: 1. Pressure gauge movement body; 2. Protective outer shell; 201. Leak-proof mounting ring; 3. Leak-proof rubber sleeve; 4. External connecting pipe; 401. Leak-proof protruding ring; 5. Double leak-proof cover; 501. Threaded mounting outer tube; 502. Second leak-proof tube; 6. Installation protection ring; 601. Anti-collision protection ring; 7. Lateral buffer; 701. Lateral support rod; 702. Lateral moving block; 703. Lateral protective spring; 8. Telescopic elastic buffer; 801. L-shaped fixing rod; 802. Vertical protective spring; 803. Vertical bearing plate; 9. Soft rubber tube; 10. High-transparency tempered glass cover; 101. Leak-proof protective cover; 102. High-transparency tempered glass. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Please see Figures 1-6 A high-stability pressure gauge movement includes a pressure gauge movement body 1 and a protective shell 2, with a leak-proof rubber sleeve 3 embedded on the back of the protective shell 2. The back of the pressure gauge movement body 1 is provided with an external connecting pipe 4 inserted into the leak-proof rubber sleeve 3. The back of the protective shell 2 is provided with a double leak-proof cover 5 sleeved on the leak-proof rubber sleeve 3 and the external connecting pipe 4. A protective ring 6 is provided at the outer edge of the pressure gauge movement body 1. The upper and lower sides inside the protective shell 2 are provided with transverse buffers 7. The upper and lower sides of the protective ring 6 are provided with telescopic elastic buffers 8 connected to the corresponding transverse buffers 7. A soft rubber tube 9 is provided between the pressure gauge movement body 1 and the external connecting pipe 4. A high-transparency tempered cover plate 10 is sealed on the front of the protective shell 2. The beneficial effects that this plan aims to achieve are: By providing a soft rubber tube 9 between the external connecting pipe 4 and the pressure gauge movement body 1, a soft connection is provided. When the protective shell 2 or the external connecting pipe 4 is impacted or vibrated, the impact on the pressure gauge movement body 1 is small. The pressure gauge movement body 1 is sealed and protected by the protective shell 2. The lateral buffer 7 provides buffer protection against lateral impacts, and the telescopic elastic buffer 8 provides buffer protection against vertical impacts. This allows the pressure gauge movement body 1 to be elastically protected and supported by the lateral buffer 7 and the telescopic elastic buffer 8. The external connecting pipe 4 is inserted into the inside of the leak-proof rubber sleeve 3 to seal and prevent leakage. The back of the protective shell 2 is provided with a double leak-proof cover 5 that is fitted onto the leak-proof rubber sleeve 3 and the external connecting pipe 4, which further seals the joint and provides a double sealing effect. The front of the protective shell 2 is sealed with a high-transparency tempered glass cover plate 10, which allows for direct observation of the internal pressure changes of the pressure gauge movement body 1 from the outside. It has good pressure and impact resistance, giving the device good multi-directional shock absorption protection capability, high stability protection capability, and double sealing to prevent leakage. It has excellent high-quality protection effect and good operational stability.

[0020] Furthermore, a leak-proof mounting ring 201 is embedded in the back of the protective shell 2, and a leak-proof rubber sleeve 3 is filled inside the leak-proof mounting ring 201. The two outer ends of the leak-proof rubber sleeve 3 are respectively filled and attached to the two ends of the leak-proof mounting ring 201. The leak-proof rubber sleeve 3 is an elastic rubber tube. Specifically, a leak-proof mounting ring 201 is embedded in the back of the protective shell 2, and a leak-proof rubber sleeve 3 is filled and installed inside the leak-proof mounting ring 201. At the same time, the two ends of the leak-proof rubber sleeve 3 are sleeved on the outer sides of the two ends of the leak-proof mounting ring 201, which further enhances the leak-proof protection effect and greatly improves the tightness of the connection. The leak-proof rubber sleeve 3 is an elastic rubber tube, which is convenient to disassemble and fix.

[0021] Furthermore, the two ends of the soft rubber tube 9 are respectively connected to the external connecting tube 4 and the pressure gauge movement body 1. The external connecting tube 4 is inserted into the leak-proof rubber sleeve 3. The two ends of the external connecting tube 4 are located inside and outside the protective shell 2 respectively. Both ends of the external connecting tube 4 are provided with leak-proof protruding rings 401, and the two leak-proof protruding rings 401 abut against the two ends of the leak-proof rubber sleeve 3. Specifically, the two ends of the soft rubber tube 9 are connected to the external connecting pipe 4 and the pressure gauge movement body 1, respectively, to achieve a soft connection effect. When the protective shell 2 or the external connecting pipe 4 is impacted or vibrated, the impact on the pressure gauge movement body 1 is small. Both ends of the external connecting pipe 4 are provided with anti-leakage protrusions 401. The two anti-leakage protrusions 401 can abut against the two ends of the anti-leakage rubber sleeve 3, which is convenient to install and plays a role in preventing blockage and leakage, with good protection effect.

[0022] Furthermore, the leak-proof rubber sleeve 3 is externally fitted with a threaded installation outer tube 501, and the double leak-proof cover 5 is threadedly fitted onto the outside of the threaded installation outer tube 501. The inner ring of the double leak-proof cover 5 is provided with a second leak-proof tube 502, which is fitted and sealed onto the outside of the external connecting pipe 4. Specifically, the leak-proof rubber sleeve 3 is externally fitted with a threaded installation outer tube 501. When the double leak-proof cover 5 is installed, it can be stably threaded onto the threaded installation outer tube 501, making installation and bearing convenient. In addition, a second leak-proof tube 502 is installed on the inner side of the double leak-proof cover 5. The second leak-proof tube 502 can be sleeved onto the outer side of the external connecting pipe 4 to further enhance the leak-proof sealing effect. The installation and operation are stable and the sealing effect is good.

[0023] Furthermore, the installation protection ring 6 is installed in a ring shape on the outside of the pressure gauge movement body 1. An anti-collision protection ring 601 is embedded in the outer ring of the installation protection ring 6. Two telescopic elastic buffers 8 are fixedly installed on the upper and lower sides of the installation protection ring 6 respectively. The protective shell 2 is a metal waterproof shell. Specifically, the mounting protective ring 6 is installed in a ring shape on the outside of the pressure gauge movement body 1, serving as a load-bearing installation element. This facilitates the stable installation and fixation of the two telescopic elastic buffers 8, ensuring stable load bearing. Furthermore, the anti-collision protective ring 601 provides shock absorption and protection for the mounting protective ring 6. When the protective shell 2 is damaged or deformed, the mounting protective ring 6 and the anti-collision protective ring 601 can provide auxiliary shock absorption and anti-collision protection, resulting in good anti-collision protection.

[0024] Furthermore, the lateral buffer 7 includes a lateral support rod 701, a lateral moving block 702, and a lateral protective spring 703. The two lateral support rods 701 are fixedly installed on the upper and lower sides inside the protective shell 2. The two lateral moving blocks 702 are slidably sleeved on the two lateral support rods 701 respectively. The four lateral protective springs 703 are respectively sleeved on the two lateral support rods 701. Two adjacent lateral protective springs 703 are fixed to the two ends of the lateral moving block 702 respectively. The telescopic elastic buffer 8 is fixedly installed on the lateral moving block 702. Specifically, the transverse support rod 701 is installed on the upper and lower sides inside the protective shell 2. The transverse support rod 701 is a square rod, which facilitates the stable movement of the transverse moving block 702 and ensures stable movement. The two transverse protective springs 703 provide elastic buffering on both sides of the transverse moving block 702, providing good buffering protection and a good buffering protection effect against transverse impact vibration.

[0025] Furthermore, the telescopic elastic buffer 8 includes an L-shaped fixing rod 801, a vertical protective spring 802, and a vertical bearing plate 803. The vertical bearing plate 803 is fixedly installed on the transverse buffer 7. The L-shaped fixing rod 801 is bolted to the upper and lower sides of the mounting protective ring 6. The top end of the L-shaped fixing rod 801 is slidably inserted into the vertical bearing plate 803. The vertical protective spring 802 is sleeved on the rod body of the L-shaped fixing rod 801. The two ends of the vertical protective spring 802 are fixedly connected to the L-shaped fixing rod 801 and the vertical bearing plate 803, respectively. Specifically, the L-shaped fixing rod 801 is bolted to the upper and lower sides of the installation protective ring 6. The L-shaped fixing rod 801 is inserted and slids on the vertical bearing plate 803. When an impact occurs, the L-shaped fixing rod 801 and the pressure gauge movement body 1 can move up and down. The vertical protective spring 802 plays an elastic buffering protection role. The vertical bearing plate 803 can be stably installed on the horizontal moving block 702, which facilitates stable installation. This allows the horizontal buffer 7 and the telescopic elastic buffer 8 to be stably installed as one unit, which facilitates horizontal and vertical buffering protection for the pressure gauge movement body 1, and the protection effect is good.

[0026] Furthermore, the high-transparency tempered glass cover 10 includes a leak-proof protective cover 101 and a high-transparency tempered glass 102. The leak-proof protective cover 101 is threaded and sealed to the front of the protective housing 2, and the high-transparency tempered glass 102 is embedded and installed inside the leak-proof protective cover 101. Specifically, the leak-proof protective cover 101 and the high-transparency tempered glass 102 are integrally sealed and connected, with a relatively tight connection. The leak-proof protective cover 101 is installed on the front of the protective shell 2, providing good sealing and protection performance. The high-transparency tempered glass 102 provides high-strength protection and transparency, making it convenient to use and operate.

[0027] How to use and how to work this device: An external connecting pipe 4 is installed on the back of the pressure gauge movement body 1. A soft rubber tube 9 is provided between the external connecting pipe 4 and the pressure gauge movement body 1 to provide a flexible connection. The pressure gauge movement body 1 is installed inside the protective shell 2 and is protected by the seal of the protective shell 2. When the protective shell 2 or the external connecting pipe 4 is impacted or vibrated, the impact on the pressure gauge movement body 1 is small. The upper and lower sides of the protective shell 2 are provided with horizontal buffers 7 to buffer the horizontal impact or collision. The upper and lower sides of the pressure gauge movement body 1 are provided with telescopic elastic buffers 8 to buffer the vertical impact and collision. The soft rubber tube 9 is soft, so that the pressure gauge movement body 1 is elastically protected and supported by the horizontal buffers 7 and the telescopic elastic buffers 8. When it is impacted, it has good shock absorption protection capability and high stability protection capability. The protective housing 2 has a leak-proof rubber sleeve 3 embedded on its back. The external connecting pipe 4 can be inserted and filled into the inside of the leak-proof rubber sleeve 3, which can play a good role in sealing and preventing leakage from the inside and outside of the protective housing 2. The sealing and protection effect is excellent. The back of the protective housing 2 is provided with a double leak-proof cover 5 that is fitted onto the leak-proof rubber sleeve 3 and the external connecting pipe 4, which further plays a role in sealing the joint between the leak-proof rubber sleeve 3 and the external connecting pipe 4. It has a double sealing effect. The front of the protective housing 2 is sealed with a high-transparency tempered cover plate 10, which allows the pressure change of the internal pressure of the pressure gauge movement body 1 to be observed directly from the outside. It has good pressure resistance and impact protection effect. A leak-proof mounting ring 201 is embedded in the back of the protective shell 2. A leak-proof rubber sleeve 3 is filled and installed inside the leak-proof mounting ring 201. At the same time, the two ends of the leak-proof rubber sleeve 3 are sleeved on the outer sides of the two ends of the leak-proof mounting ring 201, which further enhances the leak-proof protection effect and greatly improves the tightness of the connection. The leak-proof rubber sleeve 3 is an elastic rubber tube, which is convenient to disassemble and fix. The two ends of the soft rubber tube 9 are respectively connected to the external connecting pipe 4 and the pressure gauge movement body 1, which achieves a soft connection effect. When the protective shell 2 or the external connecting pipe 4 is impacted or vibrated, the impact on the pressure gauge movement body 1 is small. Both ends of the external connecting pipe 4 are provided with anti-leakage protrusions 401. The two anti-leakage protrusions 401 can abut against the two ends of the anti-leakage rubber sleeve 3, which is convenient to install and plays a role in preventing blockage and leakage, with good protection effect. The leak-proof rubber sleeve 3 is externally fixed with a threaded installation outer tube 501. When the double leak-proof cover 5 is installed, it can be stably threaded onto the threaded installation outer tube 501, making installation and bearing convenient. The inner side of the double leak-proof cover 5 is equipped with a second leak-proof tube 502, which can be sleeved onto the outer side of the external connecting pipe 4 to further enhance the leak-proof sealing effect. The installation and operation are stable and the sealing effect is good. The mounting protective ring 6 is installed in a ring shape on the outside of the pressure gauge movement body 1, serving as a load-bearing device and facilitating the stable installation and fixing of the two telescopic elastic buffers 8. It provides stable load-bearing capacity and the anti-collision protective ring 601 provides shock absorption and protection for the mounting protective ring 6. When the protective shell 2 is damaged or deformed, the mounting protective ring 6 and the anti-collision protective ring 601 can provide auxiliary shock absorption and anti-collision protection, resulting in good anti-collision protection. The lateral buffer 7 includes a lateral support rod 701, a lateral moving block 702, and a lateral protective spring 703. The lateral support rod 701 is mounted on the upper and lower sides inside the protective housing 2 and is a square rod, which facilitates the stable movement of the lateral moving block 702 and ensures stable bearing movement. The two lateral protective springs 703 provide elastic buffering on both sides of the lateral moving block 702, providing good buffering protection and a good buffering protection effect against lateral impact vibration. The telescopic elastic buffer 8 includes an L-shaped fixing rod 801, a vertical protective spring 802, and a vertical bearing plate 803. The L-shaped fixing rod 801 is bolted to the upper and lower sides of the mounting protective ring 6. The L-shaped fixing rod 801 is inserted into and slides on the vertical bearing plate 803. When vertical impact occurs, the L-shaped fixing rod 801 and the pressure gauge movement body 1 can move up and down. The vertical protective spring 802 plays an elastic buffering protection role. The vertical bearing plate 803 can be stably installed on the horizontal moving block 702, which facilitates stable installation. This allows the horizontal buffer 7 and the telescopic elastic buffer 8 to be stably installed as one unit, which facilitates horizontal and vertical buffering protection for the pressure gauge movement body 1, and provides good protection effect. The high-transparency tempered glass cover 10 includes a leak-proof protective cover 101 and a high-transparency tempered glass 102. The leak-proof protective cover 101 and the high-transparency tempered glass 102 are integrally sealed and connected, and the connection is relatively tight. The leak-proof protective cover 101 is installed on the front of the protective shell 2, which has good sealing and protection performance. The high-transparency tempered glass 102 plays a role in high-strength protection and transparency, and is convenient to use and operate. This gives the device good multi-directional shock absorption and protection capabilities, high stability protection capabilities, double sealing to prevent leakage, excellent high-quality protection effect, and good operational stability.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-stability pressure gauge movement, comprising a pressure gauge movement body (1) and a protective shell (2), characterized in that: A leak-proof rubber sleeve (3) is embedded on the back of the protective shell (2). The back of the pressure gauge movement body (1) is provided with an external connecting pipe (4) inserted into the leak-proof rubber sleeve (3). The back of the protective shell (2) is provided with a double leak-proof cover (5) fitted onto the leak-proof rubber sleeve (3) and the external connecting pipe (4). The outer edge of the pressure gauge movement body (1) is provided with an installation protection ring (6). The upper and lower sides of the interior of the protective shell (2) are provided with transverse buffers (7). The upper and lower sides of the installation protection ring (6) are provided with telescopic elastic buffers (8) connected to the corresponding transverse buffers (7). A soft rubber tube (9) is provided between the pressure gauge movement body (1) and the external connecting pipe (4). The front of the protective shell (2) is sealed with a high-transparency tempered cover plate (10).

2. The high-stability pressure gauge movement according to claim 1, characterized in that: The protective shell (2) has a leak-proof mounting ring (201) embedded on its back side. The leak-proof rubber sleeve (3) is filled inside the leak-proof mounting ring (201). The two outer ends of the leak-proof rubber sleeve (3) are respectively filled and attached to the two ends of the leak-proof mounting ring (201). The leak-proof rubber sleeve (3) is an elastic rubber tube.

3. The high-stability pressure gauge movement according to claim 1, characterized in that: The two ends of the soft rubber tube (9) are respectively connected to the external connecting tube (4) and the pressure gauge movement body (1). The external connecting tube (4) is inserted into the leak-proof rubber sleeve (3). The two ends of the external connecting tube (4) are located inside and outside the protective shell (2). Both ends of the external connecting tube (4) are provided with leak-proof protrusions (401). The two leak-proof protrusions (401) abut against the two ends of the leak-proof rubber sleeve (3).

4. The high-stability pressure gauge movement according to claim 1, characterized in that: The leak-proof rubber sleeve (3) is externally fitted with a threaded installation outer tube (501), and the double leak-proof cover (5) is threadedly fitted onto the outside of the threaded installation outer tube (501). The inner ring of the double leak-proof cover (5) is provided with a second leak-proof tube (502), and the second leak-proof tube (502) is fitted and sealed onto the outside of the external connecting pipe (4).

5. The high-stability pressure gauge movement according to claim 1, characterized in that: The mounting protection ring (6) is installed in a ring shape on the outside of the pressure gauge movement body (1). An anti-collision protection ring (601) is embedded in the outer ring of the mounting protection ring (6). The two telescopic elastic buffers (8) are fixedly installed on the upper and lower sides of the mounting protection ring (6). The protective shell (2) is a metal waterproof shell.

6. The high-stability pressure gauge movement according to claim 1, characterized in that: The transverse buffer (7) includes a transverse support rod (701), a transverse moving block (702), and a transverse protective spring (703). The two transverse support rods (701) are fixedly installed on the upper and lower sides inside the protective shell (2). The two transverse moving blocks (702) are slidably sleeved on the two transverse support rods (701). The four transverse protective springs (703) are sleeved on the two transverse support rods (701). Two adjacent transverse protective springs (703) are fixed at both ends of the transverse moving block (702). The telescopic elastic buffer (8) is fixedly installed on the transverse moving block (702).

7. The high-stability pressure gauge movement according to claim 1, characterized in that: The telescopic elastic buffer (8) includes an L-shaped fixing rod (801), a vertical protective spring (802), and a vertical bearing plate (803). The vertical bearing plate (803) is fixedly installed on the horizontal buffer (7). The L-shaped fixing rod (801) is bolted to the upper and lower sides of the mounting protective ring (6). The top end of the L-shaped fixing rod (801) is slidably inserted into the vertical bearing plate (803). The vertical protective spring (802) is sleeved on the rod body of the L-shaped fixing rod (801). The two ends of the vertical protective spring (802) are fixedly connected to the L-shaped fixing rod (801) and the vertical bearing plate (803) respectively.

8. The high-stability pressure gauge movement according to claim 1, characterized in that: The high-transparency tempered cover plate (10) includes a leak-proof protective cover (101) and high-transparency tempered glass (102). The leak-proof protective cover (101) is threaded and sealed to the front of the protective shell (2), and the high-transparency tempered glass (102) is embedded and installed inside the leak-proof protective cover (101).

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