Steam sterilizer pressure gauge fixing device

Abstract

The application relates to a fixing device for a pressure gauge of a steam sterilizer and relates to the technical field of pressure gauge installation, which comprises a steam sterilizer body, a detection pressure gauge is slidably connected to the outside of the steam sterilizer body, two quick-release mechanisms are arranged in the inside of the detection pressure gauge, a connecting pipe is fixedly connected to the outside of the detection pressure gauge, a pipeline connecting mechanism is arranged on the outside of the connecting pipe, the quick-release mechanism comprises a shell, a limiting locking assembly is arranged in the inside of the shell, and a limiting clamping groove is slidably connected to the outside of the limiting locking assembly. The application has the advantages that the quick-release mechanism is matched with the limiting clamping groove and the locking ball, the quick locking and stable fixing of the pressure gauge are realized, when being installed, the spring compression and clamping actions can be automatically triggered by pushing the pressure gauge, when reaching the predetermined position, the automatic reset characteristic of the limiting spring ensures that the locking ball is firmly clamped into the groove, and the difficulty in equipment maintenance and the safety hidden danger are reduced.

Description

Technical Field

[0001] This application relates to the field of pressure gauge installation technology, and in particular to a mounting device for pressure gauges in steam sterilizers. Background Technology

[0002] In industries such as medical, pharmaceutical, and food processing, steam sterilizers are core equipment for ensuring hygiene and safety, and their operational stability is crucial. Pressure gauges, as key components for monitoring the internal pressure of the sterilizer, directly affect sterilization effectiveness and equipment safety. With the industry's increasing demands for sterilization efficiency and accuracy, the performance of the pressure gauge mounting device has become a significant factor influencing equipment reliability.

[0003] A search revealed Chinese patent publication number CN215677398U, which discloses a fixing device for a Bourdon tube pressure gauge used in nuclear power plants. The device includes a base, with an auxiliary fixing plate screwed onto the upper surface of the base. A first column and a second column are threadedly connected to the left and right sides of the upper surface of the base, respectively. A recessed platform is provided on the upper end of the outer wall of the first column, and a fixing bracket is installed on the upper end of the outer wall of the second column. A groove matching the recessed platform is formed on the left side of the front face of the fixing bracket. A through hole is formed on the upper surface of the fixing bracket, and a screw is threadedly connected to the inner wall of the through hole. The upper and lower ends of the screw pass through the through hole and extend to the upper and lower ends of the fixing bracket, respectively. A pressure disc is threadedly connected to the lower end of the outer wall of the screw. This fixing device for a Bourdon tube pressure gauge used in nuclear power plants is characterized by convenient fixing, labor saving, and prevention of mechanical injury to personnel.

[0004] The aforementioned patent specification mentions that "the spring pressure gauge to be disassembled is placed inside the auxiliary fixing plate, at which point the connecting tube of the spring pressure gauge is located inside the notch. Then, the fixing bracket is manually moved so that it rotates around the second column and the outer wall of the recess on the first column. Then, the handwheel is manually rotated clockwise. Under the fixing action of the fixing nut, the screw and the clamping disc are driven to descend by rotating the handwheel, so that they press against the upper end face of the spring tube pressure gauge. After the clamping disc presses against the spring pressure gauge, the fixed spring tube pressure gauge housing is removed by using a belt wrench. When the disassembly is complete..." Then, manually rotate the handwheel counterclockwise, which will cause the clamping disc to rise, thereby releasing the Bourdon tube pressure gauge and completing the disassembly. This method uses a threaded clamping disc combined with an auxiliary fixing disc to replace manual fixation of the Bourdon tube pressure gauge, making it easier to fix during disassembly, saving manpower, and avoiding mechanical injury to personnel. The above method can facilitate the disassembly and fixation of the spring pressure gauge, but the operation is time-consuming, and frequent disassembly can lead to thread wear, affecting the sealing performance and fixing effect. Therefore, a fixing device for the pressure gauge of the steam sterilizer is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a mounting device for a pressure gauge in a steam sterilizer, which aims to improve the problem of low installation efficiency in some devices.

[0006] The fixing device for the pressure gauge of the steam sterilizer provided in this application adopts the following technical solution:

[0007] A fixing device for a pressure gauge in a steam sterilizer includes a steam sterilizer body. A pressure gauge is slidably connected to the outside of the steam sterilizer body. The pressure gauge has two quick-release mechanisms inside. A connecting pipe is fixedly connected to the outside of the pressure gauge. A pipe connection mechanism is provided outside the connecting pipe. The quick-release mechanism includes a housing. The outside of the housing is fixedly connected to the outside of the pressure gauge. A limit locking component is provided inside the housing. A limit locking groove is slidably connected to the outside of the limit locking component.

[0008] The above technical solution involves aligning the two connecting tubes of the pressure gauge with the connecting rings on the main body of the steam sterilizer, and slowly inserting them until they are in contact with the contact ring. Rotating the contact ring causes the sliding hook to slide along the limiting and fixing strip, using friction to achieve a snap-fit ​​fixation. At the same time, the sealing ring is compressed and elastically deformed, tightly filling the gap to prevent air leakage. Subsequently, the locking ball on the pressure gauge shell is aligned with the limiting slot, and the pressure gauge is pushed to slide. The limiting slot squeezes the locking ball, causing it to retract and compressing the limiting spring. When it reaches the predetermined position, the limiting spring resets and pushes the locking ball into the groove, ensuring stable operation of the pressure gauge and accurate data monitoring.

[0009] Preferably, the pipe connection mechanism includes a connecting ring, the outside of which is fixedly connected to the outside of the steam sterilizer body, and a contact ring is fixedly connected to the outside of the connecting ring;

[0010] By adopting the above technical solution, the connecting pipe outside the pressure gauge is aligned with the connecting ring fixed to the outside of the steam sterilizer body and slowly inserted, ensuring a tight fit between the connecting pipe and the contact ring outside the connecting ring. At this point, rotating the contact ring causes the sliding hooks on both sides of its exterior to slide along the limiting and fixing strip. The friction between the sliding hooks and the limiting and fixing strip secures the connecting pipe, ensuring it remains stable and does not loosen. Simultaneously, the sealing ring fixed outside the contact ring undergoes elastic deformation under the pressure of the connecting pipe, filling the gap between them and forming a reliable sealing structure, ensuring the safe operation of the steam sterilizer.

[0011] Preferably, the limiting and locking assembly includes a fixed vertical plate, the outside of which is fixedly connected to the inside of the outer shell, and a fixed horizontal plate is fixedly connected to the inside of the fixed vertical plate;

[0012] By adopting the above technical solution, the locking ball of the limiting locking assembly inside the outer shell is aligned with the limiting slot on the main body of the steam sterilizer. This pushes the pressure gauge to slide. During this process, the groove wall of the limiting slot compresses the locking ball, causing it to retract into the outer shell. This, in turn, compresses the limiting spring on the protruding shaft, causing the connecting block to compress the spring. The fixed vertical plate and fixed horizontal plate form the frame of the limiting locking assembly, providing a fixed support point for the limiting spring and ensuring stability during spring compression and reset. When the pressure gauge slides to the predetermined position, the groove of the limiting slot precisely aligns with the locking ball, and the limiting spring immediately resets, pushing the locking ball into the groove. This achieves rapid locking of the pressure gauge, ensuring the accuracy of pressure data monitoring.

[0013] Preferably, the outer shell has a hole on its exterior, a locking ball is slidably connected inside the hole, and a connecting block is fixedly connected to the outside of the locking ball;

[0014] By adopting the above technical solution, the locking ball with the hole on the outer shell is aligned with the limiting groove on the main body of the steam sterilizer, and the pressure gauge is pushed to slide. As it slides, the groove wall of the limiting groove squeezes the locking ball, causing it to slide inward along the hole in the outer shell after being subjected to force. At the same time, it drives the connecting block fixedly connected to the locking ball to move. When the pressure gauge reaches the predetermined position, the groove of the limiting groove aligns with the locking ball, and the locking ball pops out under the action of the external mechanism, locking into the limiting groove to complete the locking and ensure the stable operation of the pressure gauge.

[0015] Preferably, a protruding shaft is provided on the outside of the connecting block, and a limiting spring is sleeved on the outside of the protruding shaft;

[0016] By adopting the above technical solution, the locking ball is pushed to slide into the main body of the steam sterilizer. The locking ball is squeezed into the shell by the limiting slot and retracts, which drives the connecting block fixedly connected to it to move synchronously. The protruding shaft outside the connecting block moves accordingly, and the limiting spring sleeved on the protruding shaft is compressed. When the pressure gauge reaches the predetermined position, the groove of the limiting slot aligns with the locking ball, the limiting spring releases its elastic potential energy, pushes the connecting block to move in the opposite direction along the protruding shaft, and drives the locking ball to be locked into the limiting slot to complete the locking, ensuring the stability of the locking structure and ensuring the reliability of the pressure monitoring data.

[0017] Preferably, the limiting spring is externally fixedly connected to the outside of the fixed vertical plate, and the limiting spring is externally fixedly connected to the outside of the fixed horizontal plate.

[0018] By adopting the above technical solution, the device is pushed to slide towards the main body of the steam sterilizer. At this time, the locking ball is squeezed inward by the limiting groove, which drives the connecting block to move. During the movement of the connecting block, the limiting spring on its protruding shaft is compressed. Since the two ends of the limiting spring are fixedly connected to the fixed vertical plate and the fixed horizontal plate respectively, this provides a stable support point for the compression of the spring, so that it will not shift during the compression process. When the pressure gauge slides to the predetermined position, the groove of the limiting groove aligns with the locking ball. Due to the fixed characteristics of the two ends, the limiting spring quickly releases its elastic potential energy, pushing the connecting block to drive the locking ball into the groove of the limiting groove, thereby realizing the rapid locking of the pressure gauge and improving the accuracy and reliability of pressure monitoring.

[0019] Preferably, sliding hooks are fixedly connected to both outer sides of the contact ring, and limit fixing strips are fixedly connected to the outer sides of the sliding hooks;

[0020] By employing the above technical solution, the connecting tube of the pressure gauge is inserted into the connecting ring of the steam sterilizer body until it is tightly fitted with the contact ring. At this point, the sliding hooks fixed on both sides of the contact ring are pushed towards the connecting tube, causing it to slide along the limiting and fixing strip. The limiting and fixing strip provides guidance and limitation for the sliding hooks, ensuring that the hooks accurately engage with the annular groove or outer wall of the connecting tube. As the hooks slide, the friction between them and the limiting and fixing strip gradually increases until a firm snap-fit ​​connection is formed, tightly fixing the connecting tube within the connecting ring and ensuring the stable operation of the steam sterilizer under high pressure.

[0021] Preferably, the limiting and fixing strip is externally fixedly connected to the outside of the contact ring, and a sealing ring is externally fixedly connected to the outside of the contact ring;

[0022] By adopting the above technical solution, the connecting tube of the pressure gauge is inserted into the connecting ring fixed to the outside of the steam sterilizer body until it is tightly fitted with the contact ring. At this time, the grab hook slides along the limiting and fixing strip fixed to the outside of the contact ring, so that it tightly grips the connecting tube. During the sliding process of the grab hook, the limiting and fixing strip provides a stable sliding track for it, ensuring that the grab hook is accurately positioned and applies uniform pressure. At the same time, the sealing ring outside the contact ring undergoes elastic deformation under the compression of the connecting tube, tightly filling the gap between the connecting tube and the contact ring, avoiding safety hazards and reduced sterilization effect caused by leakage.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By using the limit slot and locking ball together, the pressure gauge can be quickly locked and stably fixed. During installation, pushing the pressure gauge will automatically trigger the spring compression and locking action. When it reaches the predetermined position, the automatic reset characteristic of the limit spring ensures that the locking ball is firmly locked into the groove, forming a stable mechanical locking structure. This effectively resists external interference, prevents loosening and displacement, ensures the long-term stable operation of the pressure gauge and the accuracy of data monitoring, and reduces the difficulty of equipment maintenance and safety hazards.

[0025] 2. By combining the contact ring and the sliding hook, the rotation drives the hook to slide along the limiting and fixing strip, and the friction force is used to lock it in place. Mechanical fastening can be completed quickly without additional tools, improving installation efficiency. At the same time, the convex surface of the sealing ring elastically deforms under pressure, tightly fitting the gap between the connecting pipe and the contact ring, forming a reliable sealing barrier. This effectively resists the high temperature and high pressure environment during steam sterilization, avoids leakage risks, and ensures the safe operation of the sterilizer and the accuracy of pressure gauge monitoring. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the fixing device for the pressure gauge of the steam sterilizer proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the main body of the steam sterilizer, showing the fixing device for the pressure gauge of the steam sterilizer proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the outer casing of the fixing device for the pressure gauge of the steam sterilizer proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the limiting and fixing strip of the fixing device for the pressure gauge of the steam sterilizer proposed in this utility model.

[0031] Explanation of reference numerals in the attached drawings: 1. Steam sterilizer body; 2. Pressure gauge; 3. Quick-release mechanism; 31. Outer shell; 32. Limiting and locking assembly; 321. Fixed vertical plate; 322. Fixed horizontal plate; 323. Limiting spring; 324. Connecting block; 325. Locking ball; 33. Limiting slot; 4. Connecting pipe; 5. Pipe connection mechanism; 51. Connecting ring; 52. Contact ring; 53. Sliding hook; 54. Limiting and fixing strip; 55. Sealing ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0033] Example: Fixing device for pressure gauge in steam sterilizer, refer to Figures 2 to 4 The device includes a fixing device for a pressure gauge in a steam sterilizer, a steam sterilizer body 1, which is used to withstand the high-pressure environment during the sterilization process, and a pressure gauge 2 that is slidably connected to the outside of the steam sterilizer body 1. The pressure gauge 2 is used to monitor the internal pressure of the sterilizer in real time. Its sliding connection design facilitates quick positioning and installation. The pressure gauge 2 is equipped with two quick-release mechanisms 3 inside. The quick-release mechanisms 3 ensure a stable connection between the pressure gauge and the body through mechanical locking, and also support quick disassembly and replacement, improving maintenance efficiency. The pressure gauge 2 is fixedly connected to a connecting pipe 4 outside. The connecting pipe 4 transmits the internal pressure of the sterilizer to the pressure gauge 2. The connecting pipe 4 is equipped with a pipe connection mechanism 5 outside. The connection mechanism 5 is used to achieve a sealed connection between the connecting pipe 4 and the body, preventing steam leakage and ensuring the stability of pressure transmission.

[0034] The quick-release mechanism 3 includes a housing 31, which is used to prevent external impurities from interfering with the operation of the internal mechanism and to provide a sliding track for the locking ball 325. The housing 31 is fixedly connected to the outside of the pressure gauge 2. A limit locking component 32 is provided inside the housing 31. The limit locking component 32 is used to realize the quick locking and release of the pressure gauge through elastic engagement. The limit locking component 32 is slidably connected to a limit slot 33. The limit slot 33 cooperates with the locking ball 325 to provide precise guidance and positioning of the locking position.

[0035] The limiting and locking assembly 32 includes a fixed vertical plate 321, which provides a mounting base for the limiting spring 323 and the fixed horizontal plate 322. The fixed vertical plate 321 is externally fixedly connected to the inside of the housing 31, and the fixed horizontal plate 322 is internally fixedly connected to the fixed vertical plate 321. The fixed horizontal plate 322, together with the fixed vertical plate 321, forms a stable force-bearing structure. The outside of the housing 31 has openings, and a locking ball 325 is slidably connected inside the openings of the housing 31. The locking ball 325 is used to directly cooperate with the limiting slot 33. To achieve the mechanical locking function, a connecting block 324 is fixedly connected to the outside of the locking ball 325. The locking ball 325 is used to directly cooperate with the limiting slot 33 to achieve the mechanical locking function. A protruding shaft is provided on the outside of the connecting block 324, and a limiting spring 323 is sleeved on the outside of the protruding shaft. The limiting spring 323 provides elastic restoring force, so that the locking ball 325 can automatically reset and lock after being pressed. The limiting spring 323 is fixedly connected to the outside of the fixed vertical plate 321 and the outside of the fixed horizontal plate 322.

[0036] Specifically, the pressure gauge 2 is aligned with the main body 1 of the steam sterilizer via a sliding connection. The connecting pipe 4 is inserted into the connecting ring 51 of the main body. The rotating contact ring 52 drives the sliding hook 53 to slide along the limiting fixing strip 54 and lock onto the connecting pipe 4. At the same time, the sealing ring 55 is deformed by pressure to achieve a seal. The locking ball 325 of the quick-release mechanism 3 is squeezed back by the limiting groove 33, which drives the connecting block 324 to compress the limiting spring 323. After reaching the predetermined position, the spring resets, causing the locking ball 325 to lock into the groove to complete the locking. When disassembling, the operation is reversed. Press the locking ball 325 to release the limiting, and rotate the contact ring 52 to release the hook for quick separation.

[0037] Reference Figure 1 Figure 4 and Figure 5 The pipe connection mechanism 5 includes a connecting ring 51, which is used to fix the entire pipe connection mechanism to the steam sterilizer body 1. The outside of the connecting ring 51 is fixedly connected to the outside of the steam sterilizer body 1. A contact ring 52 is fixedly connected to the outside of the connecting ring 51. The contact ring 52 is used to provide a sealing and connection interface. Sliding hooks 53 are fixedly connected to both sides of the outside of the contact ring 52. The sliding hooks 53 achieve mechanical fixing of the connecting pipe by sliding action and provide fastening force. A limiting fixing strip 54 is fixedly connected to the outside of the sliding hooks 53. The limiting fixing strip 54 is fixedly connected to the outside of the contact ring 52. A sealing ring 55 is fixedly connected to the outside of the contact ring 52. The sealing ring 55 is made of elastic material and fills the connection gap by deformation under pressure to achieve the sealing function in a high-pressure steam environment.

[0038] Specifically, the connecting pipe 4 is inserted into the connecting ring 51 fixed to the outside of the steam sterilizer body 1 until it fits against the contact ring 52. Then, the contact ring 52 is rotated, causing the sliding hooks 53 on both sides to slide along the limiting and fixing strip 54, so that the hooks tightly hold the connecting pipe 4 to achieve mechanical fixation. During this process, the sealing ring 55 outside the contact ring 52 is deformed by pressure, filling the connection gap and forming a seal. When disassembling, the contact ring 52 is rotated in the opposite direction, and the sliding hooks 53 retract along the limiting and fixing strip 54, so that the connecting pipe 4 can be released and the quick separation can be completed.

[0039] The implementation principle of this application embodiment is as follows: Align the two connecting pipes 4 of the pressure gauge 2 with the connecting rings 51 on the main body 1 of the steam sterilizer, ensuring that their axes are completely coaxial. Hold the pressure gauge 2 and slowly insert the connecting pipes 4 into the connecting rings 51 until they are tightly fitted with the contact rings 52. At this time, rotate the contact rings 52, causing the external sliding hooks 53 to slide along the limiting and fixing strips 54. The notch of the sliding hooks 53 and the limiting and fixing strips 54 are locked together by friction. The convex surface of the sealing ring 55 undergoes elastic deformation after the connecting pipes 4 are inserted, tightly filling the gap, effectively preventing steam leakage, and ensuring sealing reliability. Then, a rapid... To unlock the mechanism 3, align the locking ball 325 of the outer casing 31 of the pressure gauge 2 with the limiting groove 33, and push the pressure gauge 2 to slide. The groove wall of the limiting groove 33 presses against the locking ball 325, causing it to retract into the outer casing 31. This causes the connecting block 324 to compress the limiting spring 323. When the pressure gauge 2 reaches the predetermined position, the groove of the limiting groove 33 aligns with the locking ball 325, and the limiting spring 323 immediately resets, pushing the locking ball 325 into the groove. At this time, the pressure gauge 2 is firmly fixed, and the double locking mechanism ensures stable operation under high temperature and high pressure conditions, effectively avoiding the risk of loosening caused by vibration or pressure fluctuations.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fixing device for a pressure gauge in a steam sterilizer, comprising a steam sterilizer body (1), characterized in that, The main body (1) of the steam sterilizer is slidably connected to a pressure gauge (2), and the pressure gauge (2) is provided with two quick-release mechanisms (3). The pressure gauge (2) is fixedly connected to a connecting pipe (4), and the connecting pipe (4) is provided with a pipe connection mechanism (5). The quick-release mechanism (3) includes a housing (31), the outer side of which is fixedly connected to the outside of the pressure gauge (2), and a limit locking component (32) is provided inside the housing (31), and a limit slot (33) is slidably connected to the outside of the limit locking component (32).

2. The fixing device for the pressure gauge of the steam sterilizer according to claim 1, characterized in that, The pipe connection mechanism (5) includes a connecting ring (51), which is fixedly connected to the outside of the steam sterilizer body (1), and a contact ring (52) is fixedly connected to the outside of the connecting ring (51).

3. The fixing device for the pressure gauge of the steam sterilizer according to claim 1, characterized in that, The limiting locking component (32) includes a fixed vertical plate (321), which is externally fixedly connected to the inside of the outer shell (31), and a fixed horizontal plate (322) is fixedly connected to the inside of the fixed vertical plate (321).

4. The fixing device for the pressure gauge of the steam sterilizer according to claim 3, characterized in that, The outer shell (31) has a hole on its exterior, and a locking ball (325) is slidably connected inside the hole of the outer shell (31). A connecting block (324) is fixedly connected to the outside of the locking ball (325).

5. The fixing device for the pressure gauge of the steam sterilizer according to claim 4, characterized in that, The connecting block (324) is provided with a protruding shaft on the outside, and a limiting spring (323) is sleeved on the outside of the protruding shaft.

6. The fixing device for the pressure gauge of the steam sterilizer according to claim 5, characterized in that, The limiting spring (323) is externally fixedly connected to the outside of the fixed vertical plate (321), and the limiting spring (323) is externally fixedly connected to the outside of the fixed horizontal plate (322).

7. The fixing device for the pressure gauge of the steam sterilizer according to claim 2, characterized in that, The outer sides of the contact ring (52) are fixedly connected with sliding hooks (53), and the outer sides of the sliding hooks (53) are fixedly connected with limit fixing strips (54).

8. The fixing device for the pressure gauge of the steam sterilizer according to claim 7, characterized in that, The limiting and fixing strip (54) is fixedly connected to the outside of the contact ring (52), and a sealing ring (55) is fixedly connected to the outside of the contact ring (52).

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