Differential pressure self-adaption device applied to clean room

Abstract

The utility model discloses a pressure difference self-adaptive device applied to a clean room, which comprises a transmitter body, the top end of the transmitter body is fixedly connected with an anti-drop mechanism, the anti-drop mechanism comprises a fixing frame, a pressure sensor, a pressure sensor and a pressure sensor, and the fixing frame is fixedly connected to the top end of the transmitter body; one of the clamping plates is fixedly connected to the top end of the transmitter body; the knob is fixedly connected to the top end of the screw rod; the one-way assembly is arranged on one side of the fixing frame. According to the utility model, the arrangement mode that the fixing frame, the clamping plate, the screw rod, the knob and the one-way assembly are matched is utilized, the position of the wire can be limited, and the situation that the wire falls off due to the loosening of the connecting point of the wire and the micro differential pressure transmitter caused by the shaking of the wire is avoided, so that the service life of the micro differential pressure transmitter is prolonged; and meanwhile, the one-way assembly enables the knob to only rotate in one direction, so that the possibility of clamping looseness caused by reverse rotation of the knob due to external factors is avoided, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field related to pressure difference self-adaptive devices, and in particular to a pressure difference self-adaptive device applied in clean rooms. Background Art

[0002] The micro differential pressure transmitter is a pressure adaptive device used in clean room applications. It is mainly used to measure the small difference between two pressures and convert it into a standard signal output. In clean room applications, the micro differential pressure transmitter can monitor the pressure difference between the clean room and the adjacent environment in real time and automatically adjust the speed of the blower or exhaust fan according to the set value to maintain the positive or negative pressure state of the clean room, ensuring that the air quality and cleanliness of the clean room meet the requirements.

[0003] A micro differential pressure transmitter is usually electrically connected to an external power supply at one end of a wire, and the other end of the wire is connected to a connection point inside the transmitter to ensure normal operation. However, when a traditional power supply is in use, its wires are prone to shaking, causing the connection point between the wires and the micro differential pressure transmitter to loosen and then fall off, thereby reducing the service life of the micro differential pressure transmitter, causing inconvenience to users, and reducing the practicality of the micro differential pressure transmitter. Utility Model Content

[0004] The purpose of the present utility model is to provide a pressure difference self-adapting device for clean room application, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a pressure differential adaptive device for clean room application, comprising a transmitter body, a plurality of detection tubes fixedly mounted on the bottom end of the transmitter body, and a wire fixedly connected to the top end of the transmitter body;

[0006] The top end of the transmitter body is fixedly connected with an anti-slip mechanism, which includes:

[0007] A fixing bracket, the fixing bracket being fixedly connected to the top end of the transmitter body;

[0008] A clamping plate, wherein one of the clamping plates is fixedly connected to the top of the transmitter body, and the other clamping plate is arranged inside the fixing frame;

[0009] A screw, one end of which is connected to the other clamping plate, and the other end of which is threadedly connected to the fixing frame;

[0010] A knob fixedly connected to the top end of the screw;

[0011] A one-way component is arranged on one side of the fixing frame and is used to limit the rotation of the knob.

[0012] Preferably, the one-way component comprises:

[0013] Extrusion rods, a plurality of extrusion grooves are equidistantly provided on one side of the fixing frame, and one end of each of the plurality of extrusion rods is respectively slidably connected with the inner cavities of the plurality of extrusion grooves;

[0014] A synchronization plate, the other ends of the plurality of extrusion rods are fixedly connected to the synchronization plate;

[0015] A one-way plate, the one-way plate is fixedly connected to the outer wall of the synchronization plate, the outer wall of the knob is provided with a plurality of snap-fit ​​grooves at equal intervals, and the one-way plate is slidably connected with the inner cavity of the snap-fit ​​grooves;

[0016] A compression spring is sleeved on the outside of the extrusion rod.

[0017] Preferably, one end of the compression spring is fixedly connected to the extrusion rod, and the other end of the compression spring is fixedly connected to the inner wall of the extrusion groove.

[0018] Preferably, a rotation groove is provided at the top end of the other clamping plate, a rotation block is provided inside the rotation groove, and one end of the screw is fixedly connected to the rotation block.

[0019] Preferably, both sides of the other clamping plate are fixedly connected with limiting blocks, both sides of the inner wall of the fixing frame are provided with limiting grooves, and the limiting blocks are slidably inserted into the inner cavity of the limiting grooves.

[0020] Preferably, opposite sides of the plurality of clamping plates are fixedly connected with rubber pads, and the outer walls of the rubber pads are provided with anti-slip textures.

[0021] The technical effects and advantages of this utility model are:

[0022] The utility model utilizes a setting mode in which a fixing frame, a clamping plate, a screw, a knob and a one-way component are matched. The clamping plate is driven downward by the knob to fix the wire inside the fixing frame, thereby limiting the position of the wire and preventing the connection point between the wire and the micro differential pressure transmitter from loosening due to the shaking of the wire, which may cause the wire to fall off, thereby improving the service life of the micro differential pressure transmitter. At the same time, the one-way component enables the knob to be rotated in only one direction, thereby preventing the possibility of the knob being reversed and the clamping being loosened due to external factors. When disassembly is required, the limit of the knob by the one-way component can be released, and disassembly can be carried out, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of the anti-slip mechanism of the utility model from the front.

[0025] Figure 3This is a schematic diagram of the internal structure of the anti-slip mechanism of the utility model.

[0026] Figure 4 This is a schematic diagram of the anti-slip mechanism of the utility model from a top view.

[0027] In the figure: 1. Transmitter body; 2. Detection tube; 3. Wire; 4. Anti-slip mechanism; 41. Fixing bracket; 42. Clamping plate; 43. Screw; 44. Knob; 45. One-way assembly; 451. Extrusion rod; 452. Synchronous plate; 453. One-way plate; 454. Compression spring; 5. Rotating block; 6. Limit block; 7. Rubber pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The utility model provides Figure 1-4 The pressure differential adaptive device for clean room application shown in the figure includes a transmitter body 1, a plurality of detection tubes 2 are fixedly mounted on the bottom end of the transmitter body 1, and a wire 3 is fixedly connected to the top end of the transmitter body 1;

[0030] Furthermore, the top of the transmitter body 1 is fixedly connected with an anti-slip mechanism 4, which includes: a fixing frame 41, a clamping plate 42, a screw 43, a knob 44 and a one-way component 45. The fixing frame 41 is fixedly connected to the top of the transmitter body 1; one of the clamping plates 42 is fixedly connected to the top of the transmitter body 1, and the other clamping plate 42 is arranged inside the fixing frame 41; one end of the screw 43 is connected to the other clamping plate 42, and the other end of the screw 43 is threadedly connected to the fixing frame 41; the knob 44 is fixedly connected to the top of the screw 43; the one-way component 45 is arranged on one side of the fixing frame 41 , used to limit the rotation of the knob 44. The knob 44 drives the clamping plate 42 to move downward, so that the wire 3 can be fixed inside the fixing frame 41, thereby limiting the position of the wire 3 and preventing the connection point between the wire and the micro-differential pressure transmitter from loosening due to the shaking of the wire 3, which may cause the wire 3 to fall off, thereby improving the service life of the micro-differential pressure transmitter. At the same time, the one-way component 45 enables the knob 44 to be rotated only in one direction, so that there is no possibility of the knob 44 being reversed and loosened due to external factors. When disassembly is required, the limit of the knob 44 by the one-way component 45 can be released, and disassembly can be carried out for easy use.

[0031] Specifically, the one-way component 45 includes: an extrusion rod 451, a synchronous plate 452, a one-way plate 453 and a compression spring 454. A plurality of extrusion grooves are equidistantly provided on one side of the fixing frame 41. One end of the plurality of extrusion rods 451 is respectively slidably and interlacedly connected with the inner cavity of the plurality of extrusion grooves; the other ends of the plurality of extrusion rods 451 are fixedly connected with the synchronous plate 452; the one-way plate 453 is fixedly connected to the outer wall of the synchronous plate 452, and a plurality of clamping grooves are equidistantly provided on the outer wall of the knob 44. The one-way plate 453 is slidably and interlacedly connected with the inner cavity of the clamping groove, and the outer wall of the one-way plate 453 is provided with an inclined surface, so that when the one-way plate 453 is clamped with the clamping groove, the knob 44 can only rotate in one direction, that is, it can only The cam 453 is in a state of compression at all times, and the cam 454 is in a state of compression at all times, and the cam 453 ...

[0032] Furthermore, a rotating groove is provided at the top of the other clamping plate 42, and a rotating block 5 is provided inside the rotating groove. One end of the screw 43 is fixedly connected to the rotating block 5, and the screw 43 is driven to rotate by the knob 44. The rotating block 5 can rotate inside the rotating groove and squeeze the rotating groove, thereby driving the clamping plate 42 to move.

[0033] Furthermore, the other clamping plate 42 is fixedly connected to the limiting blocks 6 on both sides, and the limiting grooves are provided on both sides of the inner wall of the fixing frame 41. The limiting blocks 6 are slidably connected with the inner cavity of the limiting grooves. The limiting blocks 6 play a limiting role on the fixing frame 41, so that the clamping plate 42 can only move in the vertical direction along the limiting grooves under the rotation of the screw 43.

[0034] Furthermore, the opposite sides of the multiple clamping plates 42 are fixedly connected with rubber pads 7, and the outer wall of the rubber pads 7 is provided with anti-slip texture. The setting of the anti-slip texture enables the rubber pads 7 to increase the friction between the clamping plates 42 and the wires, so that the fixing effect of the wires 3 is better, and at the same time it also plays a protective role for the wires 3, preventing the clamping plates 42 from clamping the wires 3, making it easy to use.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pressure differential adaptive device for clean room applications, comprising: A transmitter body (1), wherein a plurality of detection tubes (2) are fixedly mounted on the bottom end of the transmitter body (1), and a wire (3) is fixedly connected to the top end of the transmitter body (1); The invention is characterized in that the top end of the transmitter body (1) is fixedly connected with an anti-slip mechanism (4), and the anti-slip mechanism (4) comprises: A fixing frame (41), wherein the fixing frame (41) is fixedly connected to the top end of the transmitter body (1); A clamping plate (42), wherein one of the clamping plates (42) is fixedly connected to the top of the transmitter body (1), and the other clamping plate (42) is arranged inside the fixing frame (41); A screw rod (43), one end of the screw rod (43) is connected to another clamping plate (42), and the other end of the screw rod (43) is threadedly connected to the fixing frame (41); A knob (44), wherein the knob (44) is fixedly connected to the top end of the screw (43); A one-way component (45) is provided on one side of the fixing frame (41) and is used to limit the rotation of the knob (44).

2. The pressure differential adaptive device for clean room application according to claim 1, characterized in that: The one-way component (45) comprises: An extrusion rod (451), wherein a plurality of extrusion grooves are equidistantly provided on one side of the fixing frame (41), and one end of each of the plurality of extrusion rods (451) is respectively connected to the inner cavities of the plurality of extrusion grooves by sliding insertion; A synchronization plate (452), the other ends of the plurality of extrusion rods (451) are all fixedly connected to the synchronization plate (452); A one-way plate (453), the one-way plate (453) is fixedly connected to the outer wall of the synchronization plate (452), the outer wall of the knob (44) is provided with a plurality of snap-fit ​​grooves at equal intervals, and the one-way plate (453) is slidably connected to the inner cavity of the snap-fit ​​grooves; A compression spring (454) is sleeved on the outside of the extrusion rod (451).

3. The pressure differential adaptive device for clean room application according to claim 2, characterized in that: One end of the compression spring (454) is fixedly connected to the extrusion rod (451), and the other end of the compression spring (454) is fixedly connected to the inner wall of the extrusion groove.

4. The pressure differential adaptive device for clean room application according to claim 1, characterized in that: A rotation groove is provided at the top end of the other clamping plate (42), a rotation block (5) is provided inside the rotation groove, and one end of the screw rod (43) is fixedly connected to the rotation block (5).

5. The pressure differential adaptive device for clean room application according to claim 1, characterized in that: The other clamping plate (42) is fixedly connected to the limiting blocks (6) on both sides, and the inner wall of the fixing frame (41) is provided with limiting grooves on both sides, and the limiting blocks (6) are connected to the inner cavity of the limiting grooves in a sliding manner.

6. The pressure differential adaptive device for clean room applications according to claim 1, characterized in that: The opposite sides of the plurality of clamping plates (42) are all fixedly connected to rubber pads (7), and the outer walls of the rubber pads (7) are provided with anti-slip textures.

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