Three-pin pressure gauge with protection structure

Abstract

The utility model provides a three-pin pressure gauge with a protection structure, and belongs to the field of pressure gauges, in order to solve the problem that equipment is inconvenient to mount and dismount conveniently, the three-pin pressure gauge comprises a three-pin pressure gauge body and a protection shell, the protection shell is arranged on the three-pin pressure gauge body, and a cover plate is arranged on the protection shell. The bidirectional threaded rod is in threaded connection with a connecting frame, and the connecting frame is fixedly connected with an extrusion block. The device is provided with a bidirectional threaded rod; when the air inlet pipe and the external pipe are spliced, the mounting box can be arranged on the outer sides of the air inlet pipe and the external pipe, the rotating disc is rotated to drive the two-way threaded rod to rotate, the two-way threaded rod can drive the connecting frames on the two sides to move inwards, and meanwhile extrusion blocks on the connecting frames are clamped in through holes of the air inlet pipe and the external pipe; and the extrusion block continues to move to extrude and fix the air inlet pipe and the external pipe, the extrusion and fixing effect is achieved, and when the air inlet pipe and the external pipe are extruded, the installed sealing gasket can start the sealing protection effect.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauges, and more specifically, to a three-needle pressure gauge with a protective structure. Background Technology

[0002] Three-needle pressure gauges are mainly used to measure and control the pressure value of pressure systems. They use three pointers to indicate different pressure ranges and functions. Their core function is to realize real-time pressure indication, threshold setting, and automatic control signal triggering through three independent pointers. They are widely used in various industrial fields that require precise pressure measurement and control.

[0003] However, most three-needle pressure gauges currently have the following problems:

[0004] For example, the three-needle pressure gauge with publication number 202022681801.2 is exposed during use and is easily damaged by impacts, affecting the subsequent monitoring effect and making it inconvenient to protect the three-needle pressure gauge. At the same time, in the use of existing three-needle pressure gauges, the air inlet pipe is mostly connected and fixed by a flange and multiple bolts. When disassembly and maintenance are required, the staff need to use tools to remove multiple bolts, which is cumbersome and affects the efficiency of disassembly and installation, making it inconvenient to install and disassemble the equipment conveniently.

[0005] Therefore, we have made improvements to this by proposing a three-needle pressure gauge with a protective structure. Utility Model Content

[0006] The purpose of this utility model is to address the current problems of inconvenience in protecting three-needle pressure gauges and inconvenience in convenient installation and disassembly of the equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A three-needle pressure gauge with a protective structure is used to improve the above-mentioned problems.

[0009] The application is as follows:

[0010] The device includes a three-needle pressure gauge body and a protective housing. The protective housing is mounted on the three-needle pressure gauge body, and a cover plate is mounted on the protective housing. A positioning block is fixedly connected to the cover plate, and a spring is fixedly connected inside the positioning block. A limit plate is fixedly connected to the other end of the spring, and a locking block is fixedly connected to the limit plate. A connecting rod is fixedly connected to the limit plate, and a pull plate is fixedly connected to the connecting rod. An air inlet pipe is mounted on the three-needle pressure gauge body, and an outer connecting pipe is mounted on the air inlet pipe. A sealing gasket is fixedly connected to the air inlet pipe and the outer connecting pipe. A mounting box is mounted on one side of the air inlet pipe and the outer connecting pipe. A bidirectional threaded rod is rotatably connected to the mounting box, and a turntable is fixedly connected to the bidirectional threaded rod. A connecting frame is threadedly connected to the bidirectional threaded rod, and a pressing block is fixedly connected to the connecting frame.

[0011] As a preferred technical solution of this application, the inner side of the cover plate is fitted with the outer side of the protective shell, and the cross-section of the positioning block is "T" shaped.

[0012] As a preferred technical solution of this application, the positioning blocks are symmetrically distributed on the left and right sides of the cover plate, and the positioning blocks correspond one-to-one with the card blocks through the limiting plates.

[0013] As a preferred technical solution of this application, the length of the card block is less than the length of the connecting rod, and the outer side of the air intake pipe is in contact with the inner side of the outer pipe.

[0014] As a preferred technical solution of this application, the cross-section of the connecting frame is "L" shaped, and the side end face of the connecting frame is in contact with the inner side of the mounting box.

[0015] As a preferred technical solution of this application, the connecting frame is symmetrically distributed on the left and right sides of the bidirectional threaded rod, and the connecting frame corresponds one-to-one with the extrusion block.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] 1. Equipped with a protective outer shell; when protecting the three-needle pressure gauge body, the protective outer shell can be placed on the three-needle pressure gauge body. Pulling the pull plates on both sides of the cover plate causes the pull plates to move through the connecting rod, which in turn causes the limit plate to compress the spring inside the positioning block. At the same time, the limit plate causes the locking block to retract into the positioning block, allowing the cover plate to be placed on the protective outer shell. The positioning block is then locked in the protective outer shell. Releasing the pull plates causes the limit plate and locking block to reset under the push of the spring, and the locking block is locked in the protective outer shell, thus fixing the limit cover plate and protecting the three-needle pressure gauge body.

[0019] 2. Equipped with a bidirectional threaded rod; when splicing the intake pipe and the outer pipe, the mounting box can be placed outside the intake pipe and the outer pipe. Rotating the turntable drives the bidirectional threaded rod to rotate, which in turn drives the connecting brackets on both sides to move inward. At the same time, the pressing block on the connecting bracket engages in the through hole of the intake pipe and the outer pipe. As the pressing block continues to move, it can press and fix the intake pipe and the outer pipe, thus playing a pressing and fixing role. Furthermore, when the intake pipe and the outer pipe are pressed, the sealing gasket installed can activate the sealing and protection function. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall three-dimensional structure of the three-needle pressure gauge with protective structure provided in this application;

[0021] Figure 2 A side view of the three-needle pressure gauge body with a protective structure provided in this application;

[0022] Figure 3 The three-needle pressure gauge with protective structure provided in this application Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 A top view of the cover plate structure of the three-needle pressure gauge with protective structure provided in this application;

[0024] Figure 5 A side view of the protective housing structure of the three-needle pressure gauge with protective structure provided in this application;

[0025] Figure 6 A side view of the intake pipe structure of the three-needle pressure gauge with protective structure provided in this application;

[0026] Figure 7 The three-needle pressure gauge with protective structure provided in this application Figure 5 Enlarged structural diagram at point B.

[0027] The diagram shows: 1. Three-needle pressure gauge body; 2. Protective housing; 3. Cover plate; 4. Positioning block; 5. Spring; 6. Limiting plate; 7. Locking block; 8. Connecting rod; 9. Pull plate; 10. Air inlet pipe; 11. External pipe; 12. Sealing gasket; 13. Mounting box; 14. Two-way threaded rod; 15. Turntable; 16. Connecting frame; 17. Pressing block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Example 1:

[0034] like Figure 1-7 As shown, this embodiment proposes a three-needle pressure gauge with a protective structure, including a three-needle pressure gauge body 1 and a protective shell 2. The protective shell 2 is provided on the three-needle pressure gauge body 1, and a cover plate 3 is provided on the protective shell 2. A positioning block 4 is fixedly connected to the cover plate 3, and a spring 5 is fixedly connected inside the positioning block 4. A limit plate 6 is fixedly connected to the other end of the spring 5. A locking block 7 is fixedly connected to the limit plate 6, and a connecting rod 8 is fixedly connected to the limit plate 6. A pull plate 9 is fixedly connected to the connecting rod 8. An air inlet pipe 10 is provided on the three-needle pressure gauge body 1, and an outer pipe 11 is provided on the air inlet pipe 10. A sealing gasket 12 is fixedly connected to the air inlet pipe 10 and the outer pipe 11. An installation box 13 is provided on one side of the air inlet pipe 10 and the outer pipe 11. A bidirectional threaded rod 14 is rotatably connected to the installation box 13. A turntable 15 is fixedly connected to the bidirectional threaded rod 14. A connecting frame 16 is threadedly connected to the bidirectional threaded rod 14, and a pressing block 17 is fixedly connected to the connecting frame 16.

[0035] Example 2:

[0036] The following section provides a further description of the scheme in Example 1, focusing on its specific working method. See the description below for details:

[0037] like Figure 3 As shown, in a preferred embodiment, based on the above method, the inner side of the cover plate 3 is fitted with the outer side of the protective shell 2, and the cross-section of the positioning block 4 is "T" shaped, which can ensure that the "T" shaped positioning block 4 can be limited and locked inside the protective shell 2.

[0038] like Figure 2 As shown, in a preferred embodiment, based on the above method, the positioning blocks 4 are symmetrically distributed on the left and right sides of the cover plate 3. The positioning blocks 4 correspond one-to-one with the locking blocks 7 through the limiting plates 6, which can ensure that the locking blocks 7 on both sides can be locked in the protective shell 2 to fix the limiting cover plate 3.

[0039] like Figure 3 As shown, in a preferred embodiment, based on the above method, the length of the locking block 7 is less than the length of the connecting rod 8, and the outer side of the air intake pipe 10 is in contact with the inner side of the outer pipe 11, which can ensure that when the connecting rod 8 is pulled, the locking block 7 can be retracted into the positioning block 4.

[0040] like Figure 7 As shown, in a preferred embodiment, based on the above method, the connecting frame 16 has an "L" shaped cross-section, and the side end face of the connecting frame 16 is in contact with the inner side of the mounting box 13, which can ensure that the connecting frame 16 can move smoothly by being supported by the contact of the inner side of the mounting box 13.

[0041] like Figure 7 As shown, in a preferred embodiment, based on the above method, the connecting frame 16 is symmetrically distributed on the left and right sides of the bidirectional threaded rod 14, and the connecting frame 16 corresponds one-to-one with the extrusion block 17, which can ensure that the extrusion blocks 17 on both sides can extrude the air inlet pipe 10 and the outer pipe 11 for pressure fixation.

[0042] Specifically, this three-needle pressure gauge with a protective structure should be used in conjunction with: Figure 1-7 When the intake pipe 10 and the outer pipe 11 are spliced, the mounting box 13 can be set outside the intake pipe 10 and the outer pipe 11. Rotating the turntable 15 drives the bidirectional threaded rod 14 to rotate. The bidirectional threaded rod 14 can drive the connecting brackets 16 on both sides to move inward. At the same time, the pressing block 17 on the connecting bracket 16 is engaged in the through hole of the intake pipe 10 and the outer pipe 11. The pressing block 17 continues to move and can press and fix the intake pipe 10 and the outer pipe 11, playing a pressing and fixing role. When the intake pipe 10 and the outer pipe 11 are pressed, the sealing gasket 12 installed can activate the sealing and protection role.

[0043] When protecting the three-needle pressure gauge body 1, the protective housing 2 can be placed on the three-needle pressure gauge body 1. Pull the pull plates 9 on both sides of the cover plate 3. The pull plates 9 drive the limiting plate 6 to move through the connecting rod 8. The limiting plate 6 can squeeze the spring 5 in the positioning block 4. At the same time, the limiting plate 6 drives the locking block 7 to retract into the positioning block 4. The cover plate 3 can be placed on the protective housing 2, and the positioning block 4 is locked in the protective housing 2. When the pull plate 9 is released, the limiting plate 6 and the locking block 7 are reset under the push of the spring 5. The locking block 7 can be locked in the protective housing 2, fixing the limiting cover plate 3 so as to protect the three-needle pressure gauge body 1. When disassembling, simply pull the pull plate 9 to remove the locking block 7 from the protective housing 2 and retract it into the positioning block 4, which can start the disassembly and installation.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.

Claims

1. A three needle pressure gauge with protective structure comprising a three needle pressure gauge body (1) and a protective shell (2), characterized in that, The three-needle pressure gauge body (1) is provided with a protective shell (2), the protective shell (2) is provided with a cover plate (3), a positioning block (4) is fixedly connected to the cover plate (3), a spring (5) is fixedly connected inside the positioning block (4), a limit plate (6) is fixedly connected to the other end of the spring (5), a locking block (7) is fixedly connected to the limit plate (6), a connecting rod (8) is fixedly connected to the limit plate (6), a pull plate (9) is fixedly connected to the connecting rod (8), and an air inlet is provided on the three-needle pressure gauge body (1). The air intake pipe (10) is provided with an outer pipe (11). A sealing gasket (12) is fixedly connected to the air intake pipe (10) and the outer pipe (11). An installation box (13) is provided on one side of the air intake pipe (10) and the outer pipe (11). A two-way threaded rod (14) is rotatably connected to the installation box (13). A turntable (15) is fixedly connected to the two-way threaded rod (14). A connecting frame (16) is threadedly connected to the two-way threaded rod (14). An extrusion block (17) is fixedly connected to the connecting frame (16).

2. A three needle pressure gauge with protective structure according to claim 1, characterized in that, The inner side of the cover plate (3) is in contact with the outer side of the protective shell (2), and the cross-section of the positioning block (4) is "T" shaped.

3. The three needle pressure gauge with protective structure according to claim 1, characterized in that, The positioning blocks (4) are symmetrically distributed on the left and right sides of the cover plate (3), and the positioning blocks (4) correspond one-to-one with the locking blocks (7) through the limiting plate (6).

4. The three needle pressure gauge with protective structure according to claim 1, characterized in that, The length of the card block (7) is less than the length of the connecting rod (8), and the outer side of the air intake pipe (10) is in contact with the inner side of the outer pipe (11).

5. The three needle pressure gauge with protective structure according to claim 1, characterized in that, The cross-section of the connecting frame (16) is "L" shaped, and the side end face of the connecting frame (16) is in contact with the inner side of the mounting box (13).

6. The three needle pressure gauge with protective structure according to claim 1, characterized in that, The connecting frame (16) is symmetrically distributed on the left and right sides of the bidirectional threaded rod (14), and the connecting frame (16) corresponds one-to-one with the extrusion block (17).

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