Air guide rod

Abstract

The utility model belongs to the technical field of pressure tapping and air guiding devices, and particularly relates to an air guiding rod which comprises a rod body, a fixing disc and a lock sleeve, a plurality of first lock teeth are fixedly arranged on the inner wall of the lock sleeve, a plurality of sets of installation grooves are formed in the circumferential face of the rod body in an annular array mode, and movable plates are arranged in the installation grooves in a sliding mode. A pushing block is fixedly arranged at one end of the moving plate, a moving block is slidably arranged in the mounting groove, a plurality of groups of second locking teeth are fixedly arranged at the top end of the moving block, the positions of the second locking teeth and the positions of the first locking teeth are staggered, the side, close to the moving block, of the pushing block is in a slope shape, and a rack is fixedly arranged on the moving plate; through cooperation of the above structures, when the air pipe is inserted, the fixing structure can be linked to fix and lock the air pipe at the same time, the firmness of the air pipe inserted into the rod body is improved, the air pipe is prevented from falling off, and the reliability of air pressure detection data is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure-taking and air-guiding devices, in particular to an air-guiding rod. Background Art

[0002] A clean room is a closed environment that strictly controls parameters such as air cleanliness, temperature, humidity and pressure in the room to ensure that it is not contaminated by the outside world during the manufacturing and R&D process. It is widely used in electronics, pharmaceuticals, medical care, food and other industries to achieve a high-standard clean environment and ensure product quality and safety. The clean room air guide rod is an indispensable part of the clean room environment. It provides important guarantees for maintaining the environmental stability of the clean room and the safety of the production process by accurately measuring and monitoring the indoor pressure state.

[0003] Existing gas guide rods are usually composed of the following main parts: rod body, air holes, connectors, fixings, etc. The working principle is as follows: when the pressure in the clean room changes, this change will be transmitted through the air holes of the gas guide rod. Since the other end of the gas guide rod is connected to the pressure sensor through the air pipe, the pressure sensor monitors the air pressure in real time. In this way, the operator can understand the pressure conditions in the clean room in real time to ensure the accuracy and reliability of the measurement results.

[0004] The gas guide rod in the existing technology has the following disadvantages: the end of the rod body located outside the clean room needs to be connected to the air pipe, and the air pipe is generally directly plugged into the end of the rod body located outside, and then the other end of the air pipe is connected to the pressure sensor. The air pipe is fixed on the rod body without a fixing mechanism. With the increase of usage time or the impact of external force, the air pipe becomes loose and falls off, which seriously affects the accuracy of air pressure detection data and affects the operation of the clean room. Therefore, a gas guide rod is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing gas guide rod, a gas guide rod is proposed to solve the problem that the air pipe has no fixing mechanism on the rod body, the air pipe becomes loose and falls off due to increased use time or external force impact, which seriously affects the accuracy of air pressure detection data and affects the work of the clean room.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: the utility model describes an air guide rod, comprising a rod body, an air vent is provided inside the rod body, a plurality of grooves are provided on the circumferential surface of one end of the rod body plugged into the air pipe, the rod body is inserted into the mounting hole provided on the wall panel of the clean room, a fixed disk is fixedly provided on the rod body, a locking sleeve is fixedly provided on one side of the fixed disk, a plurality of first locking teeth are fixedly provided on the inner wall of the locking sleeve, an array of mounting grooves are provided in an annular array on the circumferential surface of the rod body, a movable plate is slidably provided in the mounting groove, and one end of the movable plate is fixedly provided with a A push block is provided, a moving block is slidably arranged in the installation groove, an array of second locking teeth is fixedly arranged on the top of the moving block, the position of the second locking teeth is staggered with the position of the first locking teeth, the side of the push block close to the moving block is sloped, a rack is fixedly arranged on the moving plate, a gear is rotatably arranged in the installation groove by a rotating rod, the gear is meshed with the rack, and through the cooperation between the above structures, the fixed structure can be linked to fix and lock the trachea at the same time when the trachea is plugged in, thereby improving the firmness of the trachea plugged on the rod body, preventing it from falling off, and ensuring the reliability of the air pressure detection data.

[0007] Preferably, a first guide groove and a second guide groove are respectively provided on the inner wall of the installation groove, a first guide block is fixedly provided on the movable plate, and a second guide block is fixedly provided on the movable block, and the first guide block and the second guide block are respectively slidably inserted into the first guide groove and the second guide groove, and the stability of the movable plate and the movable block during movement is ensured through the cooperation between the above structures.

[0008] Preferably, a fixing hole is opened on the fixing plate, and a self-tapping screw is inserted into the fixing hole. The self-tapping screw is inserted into the fixing hole and drilled into the clean room wall panel to fix and assemble the air guide rod.

[0009] Preferably, a sealing groove is provided on one side of the fixed disk, and an O-ring is fixedly arranged in the sealing groove. The O-ring cooperates to prevent gas leakage from the gap between the fixed disk and the clean room wall panel, thereby improving the sealing performance.

[0010] Beneficial effects of the utility model:

[0011] The utility model provides an air guide rod. In order to prevent the air pipe from being loosened and falling off due to an increase in the use time or external force impact, thereby affecting the accuracy of air pressure detection data and affecting the subsequent work of the clean room, when the air pipe is pushed onto the rod body, the inner wall of the air pipe contacts the gear and rotates the gear through friction. The gear drives the moving plate to move by driving the rack, and the moving plate drives the pushing block to move. The inclined surface on one side of the pushing block squeezes the moving block to move the moving block upward. The moving block drives the second locking tooth to move upward, and the air pipe is continuously pushed between the first locking tooth and the second locking tooth. The second locking tooth continuously squeezes the air pipe upward, and the cooperation of the second locking tooth and the first locking tooth clamps and locks the air pipe, so that the air pipe can be fixed and locked synchronously when the sleeve is installed, which improves the convenience of use while also ensuring the fixing stability of the air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is the first stereogram of the whole;

[0014] Figure 2 It is a cross-sectional view of the whole;

[0015] Figure 3 yes Figure 2 A magnified view of the structure at center A;

[0016] Figure 4 yes Figure 2 A magnified view of the structure at B in the middle;

[0017] Legend:

[0018] 1. Rod body; 2. Ventilation hole; 3. Groove; 4. Air pipe; 5. Fixed plate; 6. Locking sleeve; 7. First locking tooth; 8. Mounting groove; 9. Moving plate; 10. Push block; 11. Moving block; 12. Second locking tooth; 13. Rack; 14. Gear; 15. First guide groove; 16. First guide block; 17. Second guide groove; 18. Second guide block; 19. Fixed hole; 20. Self-tapping screw; 21. Sealing groove; 22. O-ring; 23. Clean room wall panel; 24. Mounting hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Specific examples are given below.

[0021] See also Figure 1-Figure 4 The utility model discloses an air guide rod, comprising a rod body 1, an air vent 2 is provided inside the rod body 1, a plurality of grooves 3 are provided on the circumferential surface of one end of the rod body 1 for inserting the air pipe 4, the rod body 1 is inserted into the mounting hole 24 provided on the clean room wall panel 23, a fixing plate 5 is fixedly provided on the rod body 1, a fixing hole 19 is provided on the fixing plate 5, a self-tapping screw 20 is inserted into the fixing hole 19, a locking sleeve 6 is fixedly provided on one side of the fixing plate 5, a plurality of first locking teeth 7 are fixedly provided on the inner wall of the locking sleeve 6, and an array of mounting teeth 7 are provided in a circular array on the circumferential surface of the rod body 1. A mounting groove 8 is provided, in which a movable plate 9 is slidably arranged, a push block 10 is fixedly arranged at one end of the movable plate 9, a movable block 11 is slidably arranged in the mounting groove 8, and a second array of lock teeth 12 is fixedly arranged at the top of the movable block 11, and the position of the second lock teeth 12 is staggered with the position of the first lock teeth 7, and the side of the push block 10 close to the movable block 11 is sloped, and a rack 13 is fixedly arranged on the movable plate 9, and a gear 14 is rotatably arranged in the mounting groove 8 by a rotating rod, and the gear 14 is meshed with the rack 13. When working, in order to prevent the trachea 4 from being used The time increases, or the air pipe 4 loosens and falls off due to external force impact, affecting the accuracy of the air pressure detection data, and affecting the subsequent clean room work. First, the staff needs to install the air guide rod on the clean room wall panel 23, insert the rod body 1 into the installation hole 24 opened on the clean room wall panel 23, and then insert the self-tapping screw 20 into the fixing hole 19. Use a tool to drill the self-tapping screw 20 into the clean room wall panel 23 to assemble the air guide rod, and then insert one end of the air pipe 4 into the rod body 1 with one end of the groove 3, and continue to push the air pipe 4. The inner wall of the air pipe 4 contacts the gear 14, and friction rotates the gear 14. The gear 14 drives the rack 13 to move the movable plate 9, and the movable plate 9 drives the push block 10 to move. The inclined surface on one side of the push block 10 squeezes the movable block 11, so that the movable block 11 moves upward, and the movable block 11 drives the second locking tooth 12 to move upward, and the trachea 4 is continuously pushed between the first locking tooth 7 and the second locking tooth 12, and the second locking tooth 12 continuously squeezes the trachea 4 upward, and the trachea 4 is clamped and locked by the cooperation of the second locking tooth 12 and the first locking tooth 7, so that the trachea 4 can be fixed and locked synchronously when the sleeve is installed, which improves the convenience of use while also ensuring the fixed stability of the trachea 4.

[0022] Furthermore, a first guide groove 15 and a second guide groove 17 are respectively opened on the inner wall of the installation groove 8, a first guide block 16 is fixedly provided on the movable plate 9, and a second guide block 18 is fixedly provided on the movable block 11. The first guide block 16 and the second guide block 18 are slidably inserted into the first guide groove 15 and the second guide groove 17 respectively. During operation, the movable plate 9 and the movable block 11 respectively drive the first guide block 16 and the second guide block 18 to move in the first guide groove 15 and the second guide groove 17. The first guide groove 15 and the second guide groove 17 respectively define the movement trajectories of the movable plate 9 and the movable block 11, so that the states of the two are more stable when moving, thereby ensuring the stable operation of their structures.

[0023] Furthermore, a sealing groove 21 is opened on one side of the fixed plate 5, and an O-ring 22 is fixedly arranged in the sealing groove 21. During operation, when the air guide rod is installed, the O-ring 22 arranged on one side of the fixed plate 5 fits tightly on the clean room wall panel 23, thereby improving the sealing performance and ensuring the reliability of subsequent air pressure detection data.

[0024] Working principle: In order to prevent the air pipe 4 from increasing its usage time or becoming loose and falling off due to external force impact, which will affect the accuracy of the air pressure detection data and affect the subsequent work in the clean room, the staff must first install the air guide rod on the clean room wall panel 23, insert the rod body 1 into the installation hole 24 opened on the clean room wall panel 23, and then insert the self-tapping screw 20 into the fixing hole 19. Use a tool to drill the self-tapping screw 20 into the clean room wall panel 23 to assemble the air guide rod. When installing the air guide rod, the O-ring 22 set on one side of the fixing plate 5 fits tightly on the clean room wall panel 23, which improves the sealing and ensures the reliability of the subsequent air pressure detection data. Then, one end of the air pipe 4 is inserted into the rod body 1 with one end of the groove 3, and the air pipe 4 is continuously pushed forward. The inner wall of the air pipe 4 contacts the gear 14, and friction rotates the gear 14. The gear 14 drives the rack 13 to move the moving plate 9 moves, the moving plate 9 drives the pushing block 10 to move, and the inclined surface on one side of the pushing block 10 squeezes the moving block 11, so that the moving block 11 moves upward, and the moving block 11 drives the second locking tooth 12 to move upward, and the trachea 4 is continuously pushed between the first locking tooth 7 and the second locking tooth 12, and the second locking tooth 12 continuously squeezes the trachea 4 upward, and the trachea 4 is clamped and locked by the cooperation of the second locking tooth 12 and the first locking tooth 7, so that the trachea 4 can be synchronously fixed and locked when the sleeve is installed, which improves the convenience of use and also ensures the fixed stability of the trachea 4; when the moving plate 9 and the moving block 11 move, they respectively drive the first guide block 16 and the second guide block 18 to move in the first guide groove 15 and the second guide groove 17, and the first guide groove 15 and the second guide groove 17 respectively define the movement trajectory of the moving plate 9 and the moving block 11, so that the state of the two is more stable when moving, and the stable operation of their structure is ensured.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A gas guide rod, characterized in that: The invention comprises a rod body (1), wherein a vent hole (2) is provided inside the rod body (1), a plurality of grooves (3) are provided on the circumferential surface of one end of the rod body (1) for inserting an air pipe (4), the rod body (1) is inserted into a mounting hole (24) provided on a clean room wall panel (23), a fixing plate (5) is fixedly provided on the rod body (1), a locking sleeve (6) is fixedly provided on one side of the fixing plate (5), a plurality of first locking teeth (7) are fixedly provided on the inner wall of the locking sleeve (6), and a plurality of mounting grooves (8) are provided in an annular array on the circumferential surface of the rod body (1), and a plurality of locking teeth (8) are slidably provided in the mounting grooves (8). A movable plate (9), a push block (10) is fixedly arranged at one end of the movable plate (9), a movable block (11) is slidably arranged in the mounting groove (8), a plurality of second locking teeth (12) are fixedly arranged at the top of the movable block (11), the positions of the second locking teeth (12) and the positions of the first locking teeth (7) are staggered, a side of the push block (10) close to the movable block (11) is in a slope shape, a rack (13) is fixedly arranged on the movable plate (9), a gear (14) is rotatably arranged in the mounting groove (8) through a rotating rod, and the gear (14) is meshed with the rack (13).

2. The gas guide rod according to claim 1, characterized in that: A first guide groove (15) and a second guide groove (17) are respectively provided on the inner wall of the installation groove (8); a first guide block (16) is fixedly provided on the movable plate (9); a second guide block (18) is fixedly provided on the movable block (11); the first guide block (16) and the second guide block (18) are respectively slidably inserted into the first guide groove (15) and the second guide groove (17).

3. The gas guide rod according to claim 1, characterized in that: The fixing plate (5) is provided with a fixing hole (19), and a self-tapping thread (20) is inserted into the fixing hole (19).

4. The gas guide rod according to claim 1, characterized in that: A sealing groove (21) is provided on one side of the fixed disk (5), and an O-type sealing ring (22) is fixedly arranged in the sealing groove (21).

Images