Pressure gauge detection device

Abstract

The utility model relates to a pressure gauge detection device comprising a device main body, the device main body is provided with at least one detection pipe and sealing assemblies distributed in one-to-one correspondence with the detection pipe, one end of the detection pipe is communicated with a ventilation pipeline used for introducing gas, and the other end of the detection pipe extends to the outer side of the device main body. The sealing assembly comprises two clamping blocks which are oppositely distributed and can move in the direction close to or away from each other, the detection pipe is located between the two clamping blocks, and when the air inlet end of the pressure gauge is connected to the outer side of the detection pipe in a sleeving mode, the two clamping blocks are close to each other and are clamped and fixed to the air inlet end and the outer side of the detection pipe. And the clamping block is hermetically connected with the air inlet end and the outer wall of the detection pipe. The main purpose of the utility model is to provide the pressure gauge detection device which has the advantages of rapid disassembly and assembly of the pressure gauge, reliable and stable sealing effect and high detection result accuracy.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a pressure gauge detection device. Background Art

[0002] A pressure gauge is an instrument used to measure air pressure and is widely used. After the pressure gauge is processed and assembled, it is generally necessary to test whether the pressure value it indicates is accurate, and to pick out defective products with inaccurate measured values ​​to ensure that all pressure gauges shipped from the factory can be used normally and the measured pressure values ​​are highly accurate.

[0003] In the prior art, a Chinese patent with the announcement number CN 210375524 U discloses a pressure gauge detection device, including a workbench and a fixing mechanism, wherein the upper surface of the workbench is fixedly connected with a detection tube; the fixing mechanism includes a connecting tube, which is vertically sleeved on the top of the detection tube, and the connecting tube is fixedly connected to the detection tube; the middle of the connecting tube is connected with a horizontal through tube, and the end of the through tube away from the connecting tube is fixedly connected with a partition, the piston in the through tube is connected with a sliding plate, and the sliding plate is fixedly connected with a plurality of limit pins on the side facing the inside of the connecting tube, and the other side of the sliding plate is fixedly connected with a pull rod, and the end of the pull rod away from the sliding plate passes through the partition and is located outside the through tube, and the pull rod is slidably connected with the partition, and a spring is sleeved on the pull rod, and the spring is located in the through tube. Compared with the method of manually fixing the pressure gauge with screws, although the installation efficiency of this technical solution is improved, since the inner diameter of the connecting tube is the same as the outer diameter of the air inlet end of the pressure gauge, the air inlet end needs to be accurately aligned when inserted into the connecting tube, which affects the installation efficiency. In addition, the air inlet end and the inner wall of the connecting tube and the air inlet end and the detection tube are not sealed, so during detection, air leakage is prone to occur at the connection between the air inlet end and the detection tube, affecting the detection accuracy of the detection device. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a pressure gauge detection device which can be quickly disassembled and assembled, has a reliable and stable sealing effect, and has a high accuracy of detection results.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A pressure gauge detection device includes a device body, on which is provided at least one detection tube and a sealing assembly corresponding to the detection tubes. One end of the detection tube is connected to a ventilation duct for introducing gas, and the other end extends to the outside of the device body. The sealing assembly includes two clamping blocks that are relatively distributed and can move in a direction approaching or moving away from each other. The detection tube is located between the two clamping blocks. When the air inlet end of the pressure gauge is sleeved on the outside of the detection tube, the two clamping blocks approach each other and are clamped and fixed on the air inlet end and the outside of the detection tube. The clamping block is sealed to the air inlet end and the outer wall of the detection tube.

[0007] Furthermore, the two clamping blocks have the same structure, and the clamping blocks include a sealing part 1 and a sealing part 2, the inner side surface of the sealing part 1 fits with the outer side surface of the detection tube, and the inner side surface of the sealing part 2 fits with the outer side surface of the air inlet end.

[0008] Furthermore, the two ends of the clamping block are respectively provided with matching plug blocks and slots. When the two clamping blocks are close to each other, the plug blocks and slots at both ends of one clamping block are respectively inserted and matched with the slots and plug blocks at both ends of the other clamping block.

[0009] Furthermore, the clamping block is mounted on a mounting plate, and the mounting plate is connected to the control assembly.

[0010] Furthermore, the control component has two, and the two control components are respectively located at the two ends of the two clamping blocks, and are used to drive the two clamping blocks to move closer to or away from each other. The control component includes a mounting seat, and the mounting seat is fixed to the device body. A fixed shaft is fixed on the mounting seat, and the axis of the fixed shaft is parallel to the direction of movement of the clamping block. Two moving blocks are slidably sleeved on the fixed shaft, and the two moving blocks are respectively fixedly connected to the two clamping blocks, and a spring is connected between the two moving blocks.

[0011] Furthermore, a guide hole is provided on the mounting seat, a control rod is slidably mounted in the guide hole, one end of two linkage rods is hinged on the control rod, and the other ends of the two linkage rods are respectively hinged on the two moving blocks.

[0012] Furthermore, a flange is fixedly provided on the outer wall of the upper portion of the detection tube, and a recess is provided inwardly on the sealing portion to accommodate a recess for accommodating the flange.

[0013] Furthermore, a sealing ring is provided on the flange, and the bottom of the air inlet end is connected to the sealing ring.

[0014] Furthermore, the sealing part 1 and the sealing part 2 are both made of silicone or rubber.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, a sealing ring is arranged on the outer wall of the detection tube to improve the sealing between the detection tube and the end of the air inlet end, and at the same time, two clamping blocks that can be close to or away from each other are designed to achieve rapid disassembly and assembly and clamping and sealing of the air inlet end, thereby further improving the sealing effect and avoiding air leakage; the overall structural design is ingenious, the operation is simple and convenient, the detection effect is highly accurate, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a pressure gauge detection device of the utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view of the connection between the pressure gauge and the detection device;

[0018] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0019] Figure 4 yes Figure 1 Schematic diagram of the connection structure between the control component and the sealing component in the pressure gauge detection device.

[0020] Among them, 1. device body; 2. detection tube; 21. flange; 3. control component; 31. control rod; 32. mounting seat; 321. guide hole; 33. linkage rod; 34. moving block; 35. fixed shaft; 36. spring; 4. sealing component; 41. clamping block; 411. sealing part one; 412. sealing part two; 413. clearance groove; 414. plug-in block; 415. slot; 42. mounting plate; 5. sealing ring; 6. ventilation duct; 61. air inlet; 7. pressure gauge; 71. air inlet end. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] It should be noted that, in the description of the technical solution of the present invention, some directional words used to clearly describe the technical features of the present invention, such as "front", "back", "up", "down", "top", "bottom", "inside", "outside", etc., are all in accordance with the orientation of the drawings of the present invention.

[0023] Example

[0024] like Figure 1 and Figure 2As shown, a pressure gauge detection device of this embodiment includes a device body 1, on which at least one detection tube 2 and a sealing assembly 4 corresponding to the detection tube 2 are arranged, one end of the detection tube 2 is connected to a ventilation pipe 6 for introducing gas, and the other end extends to the outside of the device body 1. The ventilation pipe 6 is located inside the device body 1, and one end of the ventilation pipe 6 extends to the outside of the device body 1 to form an air inlet 61, which is connected to the air inlet device and is used to introduce pressurized gas into the ventilation pipe 6. The sealing assembly 4 includes two clamping blocks 41 that are relatively distributed and can move in a direction close to or away from each other. The detection tube 2 is located between the two clamping blocks 41. When the air inlet end 71 of the pressure gauge 7 is sleeved on the outside of the detection tube 2, the two clamping blocks 41 approach each other and are clamped and fixed on the air inlet end 71 and the outside of the detection tube 2. The clamping block 41 is sealed to the air inlet end 71 and the outer wall of the detection tube 2. With this structural design, the rapid disassembly and sealing connection of the air inlet end 71 and the detection tube 2 can be achieved.

[0025] The two clamping blocks 41 have the same structure and cooperate with each other. The clamping block 41 includes a sealing part 1 411 and a sealing part 2 412. The inner side surface of the sealing part 1 411 fits with the outer side surface of the detection tube 2, and the inner side surface of the sealing part 2 412 fits with the outer side surface of the air inlet end 71. In this embodiment, the sealing part 1 411 and the sealing part 2 412 can be made of silicone or rubber material, and a rubber sealing pad that can improve the sealing connection performance can also be provided on the inner side surface of the sealing part 1 411 and the sealing part 2 412. The two ends of the clamping block 41 are respectively provided with matching plug-in blocks 414 and slots 415. When the two clamping blocks 41 are close to each other, the plug-in blocks 414 and slots 415 at the two ends of one clamping block 41 are respectively inserted and matched with the slots 415 and plug-in blocks 414 at the two ends of the other clamping block 41. This plug-in match can further effectively enhance the sealing performance and avoid air leakage.

[0026] The clamping block 41 of this embodiment is installed on the mounting plate 42. The mounting method between the clamping block 41 and the mounting plate 42 can be fixed connection or detachable connection. The specific connection structure adopts the structure in the prior art and will not be described in detail here. The mounting plate 42 is connected to the control component 3. Figure 4As shown, the control assembly 3 has two, two control assemblies 3 are respectively located at the two ends of the two clamping blocks 41 and the mounting plate 42, and are used to drive the two clamping blocks 41 to move closer to or away from each other. The control assembly 3 includes a mounting seat 32, the mounting seat 32 is fixed to the device body 1, a fixed shaft 35 is fixed on the mounting seat 32, the axis of the fixed shaft 35 is parallel to the direction of movement of the clamping block 41, and two moving blocks 34 are slidably mounted on the fixed shaft 35. The two moving blocks 34 are respectively fixedly connected to the two mounting plates 42. When the moving blocks 34 slide along the fixed shaft 35, the mounting plates 42 fixed thereto are driven to move accordingly. A spring 36 is connected between the two moving blocks 34, and the two ends of the spring 36 are respectively fixedly connected to the two moving blocks 34. The spring 36 is always in an extended state, and the rebound force of the spring 36 acts on the two moving blocks 34 and is converted into a pulling force that pulls the two moving blocks 34 in a direction close to each other. In the absence of external force, the two moving blocks 34 are at the closest position due to the pulling force of the spring 36 , and at this time, the two clamping blocks 41 are plugged and sealed with each other.

[0027] The mounting seat 32 of this embodiment is provided with a guide hole 321, in which a control rod 31 is slidably mounted, the axis of the control rod 31 and the axis of the fixed shaft 35 being perpendicular to each other, one end of the control rod 31 being hinged to one end of two linkage rods 33, and the other ends of the two linkage rods 33 being hinged to two moving blocks 34 respectively. The other end of the control rod 31 extends outward from the guide hole 321 to form a control end, which is located at the end of the control rod 31, and the outer diameter of the control end is larger than the outer diameter of the control rod 31. That is, the outer diameter of the control end is larger than the inner diameter of the guide hole 321, so as to prevent the control rod 31 from moving too far. When the control end is pressed, the control rod 31 is driven to move in the direction of the guide hole 321, and then the two moving blocks 34 are driven to move away from each other through the two linkage rods 33, and then the two clamping blocks 41 are driven to move away from each other. After the two clamping blocks 41 move away from each other, the gap between them becomes larger, which makes it easier for the air inlet end 71 to enter the gap between the two clamping blocks 41 more smoothly and be mounted on the outside of the detection tube 2.

[0028] The upper outer wall of the detection tube 2 is fixed with a flange 21, and the sealing portion 411 is concavely provided with a recess 413 for accommodating the flange 21. The flange 21 is provided with a sealing ring 5, which is distributed in an annular shape, and the cross section of the sealing ring 5 is a triangular structure with a narrow upper part and a wide lower part. The bottom of the air inlet end 71 is connected to the sealing ring 5 to achieve a sealed connection between the air inlet end 71 and the detection tube 2.

[0029] When testing is required, first manually press the control rods 31 on the two control components 3 in the direction of approaching each other, and then drive the corresponding two moving blocks 34 to move away from each other through the corresponding two linkage rods 33, and then the two clamping blocks 41 move away from each other. At this time, the gap formed between the two clamping blocks 41 increases, and the air inlet end 71 of the pressure gauge 7 can be easily inserted into the gap and fitted to the outside of the detection tube 2. After the air inlet end 71 is placed, the staff loosens the control rods 31 on the two control components 3. After removing the external force, the two moving blocks 34 are reset close to each other under the action of the rebound force of the spring 36, and then drive the control rod 31 to reset and the two clamping blocks 41 to approach each other and plug together. When the two clamping blocks 41 approach each other and plug together, they also form a clamping and sealing effect on the air inlet end 71 and the outer wall of the detection tube 2. Then, gas can be introduced into the ventilation pipe 6 through the air inlet 61 to detect the pressure gauge 7. It should be noted that one of the detection tubes 2 is connected to a standard pressure gauge (not shown in the figure) for verifying the accuracy of the value of the pressure gauge 7 to be tested. This is a common technical means in the prior art and will not be elaborated here.

[0030] The utility model provides a pressure gauge detection device, which improves the sealing between the detection tube 2 and the end of the air inlet end 71 by arranging a sealing ring 5 on the outer wall of the detection tube 2, and at the same time realizes the rapid disassembly and assembly and clamping and sealing of the air inlet end 71 by designing two clamping blocks 41 that can be moved closer to or farther away from each other, thereby further improving the sealing effect and avoiding air leakage; the overall structural design is ingenious, the operation is simple and convenient, the detection effect is highly accurate, and the practicability is strong.

[0031] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A pressure gauge detection device, characterized in that: The invention comprises a device body (1), wherein at least one detection tube (2) and a sealing assembly (4) distributed one-to-one with the detection tube (2) are provided on the device body (1); one end of the detection tube (2) is connected to a ventilation pipe (6) for introducing gas, and the other end extends to the outside of the device body (1); the sealing assembly (4) comprises two clamping blocks (41) which are distributed relatively and can move in a direction approaching or moving away from each other; the detection tube (2) is located between the two clamping blocks (41); when the air inlet end (71) of the pressure gauge (7) is sleeved on the outside of the detection tube (2), the two clamping blocks (41) are close to each other and clamped and fixed on the air inlet end (71) and the outside of the detection tube (2); the clamping block (41) is sealedly connected to the air inlet end (71) and the outer wall of the detection tube (2).

2. A pressure gauge detection device according to claim 1, characterized in that: The two clamping blocks (41) have the same structure. The clamping blocks (41) include a sealing portion 1 (411) and a sealing portion 2 (412). The inner side surface of the sealing portion 1 (411) fits with the outer side surface of the detection tube (2), and the inner side surface of the sealing portion 2 (412) fits with the outer side surface of the air inlet end (71).

3. A pressure gauge detection device according to claim 2, characterized in that: The two ends of the clamping block (41) are respectively provided with matching plug-in blocks (414) and slots (415); when the two clamping blocks (41) are close to each other, the plug-in blocks (414) and slots (415) at the two ends of one clamping block (41) are respectively inserted and matched with the slots (415) and plug-in blocks (414) at the two ends of the other clamping block (41).

4. A pressure gauge detection device according to claim 1 or 3, characterized in that: The clamping block (41) is mounted on a mounting plate (42), and the mounting plate (42) is connected to the control component (3).

5. A pressure gauge detection device according to claim 4, characterized in that: The control assembly (3) has two components, and the two control components (3) are respectively located at the two ends of the two clamping blocks (41) and are used to drive the two clamping blocks (41) to move closer to or farther from each other. The control assembly (3) comprises a mounting seat (32), and the mounting seat (32) is fixed to the device body (1). A fixed shaft (35) is fixedly arranged on the mounting seat (32), and the axis of the fixed shaft (35) is parallel to the moving direction of the clamping blocks (41). Two moving blocks (34) are slidably sleeved on the fixed shaft (35), and the two moving blocks (34) are respectively fixedly connected to the two clamping blocks (41), and a spring (36) is connected between the two moving blocks (34).

6. A pressure gauge detection device according to claim 5, characterized in that: The mounting seat (32) is provided with a guide hole (321), a control rod (31) is slidably mounted in the guide hole (321), one end of two linkage rods (33) are hinged to the control rod (31), and the other ends of the two linkage rods (33) are respectively hinged to two moving blocks (34).

7. A pressure gauge detection device according to claim 2, characterized in that: The upper outer wall of the detection tube (2) is fixedly provided with a flange (21), and the sealing portion (411) is concavely provided with a recess (413) for accommodating the flange (21).

8. A pressure gauge detection device according to claim 7, characterized in that: A sealing ring (5) is provided on the flange (21), and the bottom of the air inlet end (71) is connected to the sealing ring (5).

9. A pressure gauge detection device according to claim 2, characterized in that: The sealing part 1 (411) and the sealing part 2 (412) are both made of silicone or rubber.

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