Quick-release type quick-detection pressure gauge

Abstract

The utility model discloses a quick release type quick check pressure gauge, which relates to the technical field of pressure gauges, and comprises a gauge body, the front end and the rear end of the gauge body are both provided with a detachable gauge front cover and a detachable gauge rear cover, the interior of the rear side surface of the gauge body is provided with a plurality of sliding grooves, the sliding grooves are internally provided with sliding blocks in a sliding manner, and the upper ends of the sliding blocks are provided with limiting rods. A buckle is arranged at the upper end of the limiting rod, one end of the limiting rod is fixedly connected with a moving rod, a circular ring is arranged on the inner side of the meter rear cover, a plurality of clamping grooves are formed in the inner side face of the circular ring, a plurality of through holes are formed in the inner side face of the meter rear cover, and limiting assemblies are arranged in the through holes; according to the utility model, by adopting the buckle and clamping groove quick-release structure and the axial interlocking design of the limiting block and the notch, lossless quick release and one-way locking of the rear cover of the pressure gauge are realized, the problems of sealing abrasion and low release efficiency caused by traditional thread fastening are effectively solved, and meanwhile, the interior of the gauge body is conveniently and quickly maintained and overhauled.

Description

Technical Field

[0001] This utility model relates to the field of quick-release pressure gauge technology, specifically to a quick-release pressure gauge for rapid testing. Background Technology

[0002] Pressure gauges are instruments that use elastic elements as sensing elements to measure and indicate pressures higher than ambient pressure. They are extremely common, found in almost all industrial processes and scientific research fields. They are ubiquitous in areas such as heat pipe networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. In industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used due to the high mechanical strength of their elastic sensing elements and ease of production.

[0003] While the quick-release design of traditional quick-release pressure gauges enables convenient assembly and disassembly between the gauge body and the gauge head connecting pipe, as well as quick separation between the gauge head connecting pipe and the connecting base, it still has certain shortcomings in actual use.

[0004] As precision measuring instruments, pressure gauges require regular maintenance of their internal mechanical transmission mechanisms, Bourdon tubes, and other core components. However, current designs often use stamping, riveting, or interference fits to fasten the gauge cover and body. This connection structure requires pry bars and specialized clamps for disassembly, and the lack of guiding and positioning devices leads to low efficiency. Forced prying can easily cause the gauge cover glass to crack, potentially resulting in secondary damage such as internal spring deformation and gear misalignment. Furthermore, repeated disassembly and reassembly cause structural damage that affects the instrument's sealing performance and reliability in humid or dusty environments. Therefore, designing a quick-release, rapid-check pressure gauge can effectively solve the problem of difficult gauge cover disassembly in existing pressure gauges, and has significant practical implications. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release pressure gauge to solve the following technical problems: In current designs, the gauge cover and body are mostly fixed by stamping and riveting or interference fit. This connection structure requires pry bars, special clamps, and other auxiliary tools for disassembly, and the lack of guiding and positioning devices leads to low disassembly and assembly efficiency. Forced prying can easily cause the gauge cover glass to crack, and may also cause secondary damage such as internal spring deformation and gear misalignment. Furthermore, the structural damage caused by repeated disassembly and assembly can affect the instrument's sealing performance and the reliability of the equipment in humid and dusty environments.

[0006] The objective of this utility model can be achieved through the following technical solution: A quick-release pressure gauge includes a gauge body, with a detachable front cover and a rear cover installed at both the front and rear ends of the gauge body. Multiple sliding grooves are arranged in a circular array inside the rear side of the gauge body. A snap-fit ​​assembly is provided on the rear side of the gauge body to achieve snap-fit ​​fixing of the rear cover and the gauge body. The snap-fit ​​assembly includes a slider slidably disposed inside the sliding groove. A limit rod is fixedly provided at the upper end of the slider. A buckle is provided at the upper end of the limit rod extending to the rear side of the gauge body. A moving rod is fixedly connected to the end of the limit rod near the outer side of the gauge body. A ring is fixedly provided on the inner side of the rear cover, and multiple slots matching the buckles are opened on the inner side of the ring.

[0007] As a further embodiment of this utility model: a shaft is symmetrically and movably sleeved at one end of the limiting rod away from the outer surface of the watch body, and the end of the shaft away from the limiting rod is fixedly connected to the sliding groove. A return spring is sleeved on the shaft and fixed between the limiting rod and the sliding groove.

[0008] As a further embodiment of this utility model: the movable rod extends to the outer side of the watch body and is rotatably connected to a fixed rod, and the outer side of the watch body is provided with a plurality of limiting grooves that match the fixed rod.

[0009] As a further embodiment of this utility model: the inner side of the back cover of the watch is provided with a plurality of through holes in a circular array, and a limiting component is provided in the through holes. The limiting component includes a connecting rod movably disposed inside the through hole, a limiting block is fixedly disposed at the lower end of the connecting rod, and an elastic element fixed between the limiting block and the through hole is sleeved on the connecting rod.

[0010] As a further embodiment of this utility model, the upper end of the buckle is provided with a groove that matches the limiting block.

[0011] As a further embodiment of this utility model: a rotating assembly is provided at the upper end of the watch body. The rotating assembly includes a U-shaped block fixedly disposed at the upper end of the watch body. A rotating shaft is connected through the U-shaped block. A rotating plate is rotatably sleeved on the rotating shaft. The other end of the rotating plate is fixedly connected to the front cover of the watch.

[0012] As a further embodiment of this utility model: the lower end of the watch body is provided with a structure identical to the limiting component, and the upper end of the watch front cover is provided with a mounting block, on which mounting holes are symmetrically opened.

[0013] As a further embodiment of this utility model: a glass plate is installed on the front cover of the watch, and a watch head connecting tube is connected to the lower end of the watch body.

[0014] The beneficial effects of this utility model are:

[0015] (1) This utility model uses the reciprocating motion of the limit rod driven by the moving rod, combined with the automatic reset characteristic of the reset spring, to realize the instantaneous engagement and locking of the buckle and the slot, thereby greatly improving the disassembly and assembly efficiency of the pressure gauge back cover, facilitating the rapid maintenance and repair of the gauge body's interior. The elastic element pushes the limit block into the top slot of the buckle, effectively limiting the horizontal displacement of the buckle. Under strong vibration conditions, it can also ensure the tight connection between the gauge back cover and the gauge body, thereby effectively solving the problems of sealing wear and low disassembly and assembly efficiency caused by traditional thread fastening.

[0016] (2) This utility model uses a limiting component set at the lower end of the gauge body and symmetrical mounting holes at both ends of the mounting block at the upper end of the gauge front cover to quickly release the snap-fit ​​fixing of the gauge front cover. The gauge front cover rotates around the rotating axis, which facilitates the rapid calibration of the zero point or range inside the pressure gauge, ensuring accurate measurement results. The pointer value inside the gauge body can be observed through the glass plate at the upper end of the gauge front cover during testing. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is the body of the utility model. Figure 1 Enlarged structural diagram of the rotating component at point A

[0020] Figure 3 This is a schematic diagram of the structure of the rear side of the body of this utility model;

[0021] Figure 4 This is a top view of the structure of the watch body of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the watch body and back cover of this utility model;

[0023] Figure 6 This is a utility model Figure 4 Enlarged structural diagram at point A;

[0024] Figure 7 This is a structural schematic diagram of the limiting component of this utility model.

[0025] In the diagram: 1. Meter body; 11. Circular groove; 12. Sliding groove; 13. Meter head connecting pipe; 2. Meter front cover; 21. Mounting block; 22. Glass plate; 3. Meter back cover; 31. Ring; 32. Slot; 33. Through hole; 4. Snap-fit ​​assembly; 41. Slider; 42. Limiting rod; 43. Moving rod; 44. Shaft; 45. Buckle; 451. Groove; 46. Return spring; 47. Fixing rod; 48. Limiting groove; 5. Limiting assembly; 51. Connecting rod; 52. Limiting block; 53. Rectangular block; 54. Elastic element; 6. Rotating assembly; 61. U-shaped block; 62. Rotating shaft; 63. Fastener; 64. Rotating plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1-7 As shown, this utility model is a quick-release pressure gauge, including a gauge body 1. A front cover 2 is detachably installed on one side of the gauge body 1, and a rear cover 3 is detachably connected to the other side of the gauge body 1. A snap-fit ​​assembly 4 is provided on the rear side of the gauge body 1. The snap-fit ​​assembly 4 is used to snap the gauge body 1 and the rear cover 3, thereby realizing quick disassembly and assembly of the rear cover of the gauge body 1. This facilitates the maintenance and repair of aged or damaged internal parts of the pressure gauge, as well as the cleaning of internal dust, oil, or corrosive substances, improving detection accuracy. A circular groove 11 is opened at the rear end of the gauge body 1, and multiple sliding grooves 12 are opened in a circular array inside the rear side of the gauge body 1. In this embodiment, the number of sliding grooves 12 is 4. The snap-fit ​​assembly 4 includes a slider 41 that is slidably disposed inside the sliding groove 12. A limiting rod 42 is fixedly provided at the upper end of the slider 41. A moving rod 43 is fixedly connected to one end of the limiting rod 42 near the outer side of the watch body 1. A shaft 44 is symmetrically and movably sleeved at the other end of the limiting rod 42. A buckle 45 is provided on the surface of the limiting rod 42 extending to the rear side of the watch body 1. A ring 31 is fixedly provided on the inner side of the watch back cover 3. The ring 31 matches the circular groove 11. The inner side of the ring 31 has a ring array of slots 32 that match the buckle 45. Rubber sealing rings are provided on the inner side of the ring 31 and the side wall of the circular groove 11 of the watch body 1. The rubber sealing rings effectively fill the gap between the watch back cover 3 and the watch body 1 to form a reliable seal.

[0028] A return spring 46 is sleeved on the shaft 44 and fixed between the sliding groove 12 and the limiting rod 42. When the limiting rod 42 is pressed, the return spring 46 stores elastic potential energy. After the buckle 45 and the slot 32 are engaged, the return spring 46 applies an elastic force to the limiting rod 42, so that the buckle 45 and the slot 32 fit tightly together.

[0029] The movable rod 43 extends to the outer side of the watch body 1 and is rotatably connected to the fixed rod 47. The outer side of the watch body 1 is provided with multiple limiting grooves 48. The fixed rod 47 is engaged in the limiting groove 48. Rotating the fixed rod 47 makes the fixed rod 47 and the limiting groove 48 match. At this time, pressing and moving the fixed rod 47 into the inside of the limiting groove 48 causes the fixed rod 47 to drive the limiting rod 42 to move backward, releasing the buckle 45 from the slot 32. This allows the back cover 3 to be quickly removed from the back of the watch body 1, facilitating quick maintenance and repair of the inside of the watch body 1.

[0030] The inner side of the watch back cover 3 has a plurality of through holes 33 arranged in a ring array. A limit component 5 is provided in the through hole 33. The limit component 5 includes a connecting rod 51 movably disposed inside the through hole 33. A limit block 52 is fixedly disposed at the lower end of the connecting rod 51. A rectangular block 53 is fixedly disposed at the upper end of the connecting rod 51 through the watch back cover 3 to its outer side.

[0031] An elastic element 54 is sleeved on the connecting rod 51 and fixed between the limiting block 52 and the through hole 33. The elastic element 54 can be a spring. A groove is provided on the rectangular block 53, which is used to drive the limiting block 52 to move back and forth in the through hole 33.

[0032] The upper end of the buckle 45 is provided with a slot 451, which matches the limiting block 52. The slot 451 and the limiting block 52 complete the horizontal fixation of the buckle 45, so as to prevent the back cover 3 of the pressure gauge from being unstable due to the buckle 45 shaking when the pressure gauge is in use.

[0033] In summary, during installation of a quick-release pressure gauge, the inner side ring 31 of the gauge's rear cover 3 is aligned with the circular groove 11 and pressed down. The bottom of the ring 31 presses against the buckle 45, driving the buckle 45 to move backward. The return spring 46 is compressed, storing elastic potential energy. After the ring 31 and the circular groove 11 are tightly fitted, the return spring 46 drives the limiting rod 42 to move to the left, thereby driving the buckle 45 to move to the left. The buckle 45 engages and is fixed with the groove 32 on the inner side of the ring 31, thus limiting the vertical displacement of the gauge's rear cover 3. At this time, the elastic element 54 presses against the limiting block 52, and the limiting block 52 matches the slot 451 at the upper end of the buckle 45, allowing the buckle to move backward. The horizontal displacement of the buckle 45 is limited to prevent it from shifting due to vibration during use of the pressure gauge, which would cause the back cover 3 to be loosely connected to the gauge body 1. During disassembly and assembly, firstly, the rectangular block 53 is pulled to move the connecting rod 51 upward, and the elastic element 54 is squeezed, releasing the locking and fixing of the limiting block 52 and the slot 451. Then, the fixing rod 47 is rotated so that it can move within the limiting groove 48, thereby driving the limiting rod 42 to move backward through the fixing rod 47, releasing the locking and fixing of the buckle 45 and the slot 32. The back cover 3 can then be removed to maintain and inspect the inside of the gauge body 1 to improve the detection accuracy.

[0034] Example 2: Based on Example 1, please refer to... Figure 1-3 As shown, a rotating assembly 6 is provided at the upper end of the watch body 1. The rotating assembly 6 includes a U-shaped block 61 fixedly installed at the upper end of the watch body 1. A rotating shaft 62 is connected through the U-shaped block 61. Fasteners 63 are provided on both sides of the rotating shaft 62. The fasteners 63 can be fixed by locking bolts. A rotating plate 64 is rotatably sleeved on the rotating shaft 62. The other end of the rotating plate 64 is fixedly connected to the front cover 2 of the watch.

[0035] The lower end of the watch body 1 is symmetrically provided with the same structure as the limiting component 5. The upper end of the front cover 2 is provided with a mounting block 21. The mounting block 21 is symmetrically provided with mounting holes that match the limiting component 5. By cooperating with the mounting hole on the mounting block 21 on one side of the front cover 2, the front cover 2 can be quickly snapped and fixed.

[0036] A glass plate 22 is installed on the front cover 2 of the watch, and a watch head connecting pipe 13 is connected to the lower end of the watch body 1.

[0037] In summary, by releasing the locking and fixing of the limiting component 5 and the mounting hole on the mounting block 21, the front cover 2 of the gauge can be rotated and opened around the rotating shaft 62, which facilitates the calibration of the zero point or range of the pressure gauge through the internal adjusting screw or knob, ensuring accurate measurement results. During testing, the pointer value inside the gauge body 1 can be observed through the glass plate 22 at the upper end of the front cover 2.

[0038] Example 3

[0039] This embodiment is obtained by combining Embodiment 1 and Embodiment 2.

[0040] By adopting a quick-release structure design for the front cover 2 and the rear cover 3, the pressure gauge not only enables rapid maintenance and repair of the internal parts of the gauge body 1, significantly improving daily maintenance efficiency and ease of operation; at the same time, by reducing the complexity of disassembly, this design reduces the risk of sealing degradation caused by frequent maintenance, ensuring that the pressure gauge can maintain long-term stable measurement accuracy after repeated disassembly and assembly.

[0041] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A quick-release pressure gauge, comprising a gauge body (1), characterized in that, The watch body (1) is equipped with a detachable front cover (2) and a back cover (3) at both the front and rear ends. The rear side of the watch body (1) has multiple sliding grooves (12) arranged in an inner annular array. The rear side of the watch body (1) is provided with a snap-fit ​​assembly (4). The snap-fit ​​assembly (4) is used to snap-fit ​​and fix the back cover (3) to the watch body (1). The snap-fit ​​assembly (4) includes a slider (41) that is slidably disposed inside the sliding groove (12). The upper end of the slider (41) is fixedly provided with a limit rod (42). The upper end of the limit rod (42) extends to the rear side of the watch body (1) and is provided with a buckle (45). The end of the limit rod (42) near the outer side of the watch body (1) is fixedly connected with a moving rod (43). The inner side of the back cover (3) is fixedly provided with a ring (31). The inner side of the ring (31) is provided with multiple slots (32) that match the buckle (45).

2. The quick-release pressure gauge according to claim 1, characterized in that, The end of the limiting rod (42) away from the outer side of the watch body (1) is symmetrically and movably sleeved with a shaft (44). The end of the shaft (44) away from the limiting rod (42) is fixedly connected to the sliding groove (12). A return spring (46) is sleeved on the shaft (44) and fixed between the limiting rod (42) and the sliding groove (12).

3. The quick-release pressure gauge according to claim 1, characterized in that, The movable rod (43) extends to the outer side of the watch body (1) and is rotatably connected to the fixed rod (47). The outer side of the watch body (1) is provided with multiple limiting grooves (48) that match the fixed rod (47).

4. A quick-release pressure gauge according to claim 1, characterized in that, The inner side of the back cover (3) of the watch has a ring array of multiple through holes (33). A limit component (5) is provided in the through hole (33). The limit component (5) includes a connecting rod (51) movably disposed inside the through hole (33). A limit block (52) is fixedly disposed at the lower end of the connecting rod (51). An elastic element (54) is sleeved on the connecting rod (51) and fixed between the limit block (52) and the through hole (33).

5. A quick-release pressure gauge according to claim 1, characterized in that, The upper end of the buckle (45) is provided with a slot (451) that matches the limiting block (52).

6. A quick-release pressure gauge according to claim 1, characterized in that, The upper end of the watch body (1) is provided with a rotating component (6). The rotating component (6) includes a U-shaped block (61) fixedly installed on the upper end of the watch body (1). A rotating shaft (62) is connected through the U-shaped block (61). A rotating plate (64) is rotatably sleeved on the rotating shaft (62). The other end of the rotating plate (64) is fixedly connected to the front cover (2) of the watch.

7. A quick-release pressure gauge according to claim 1, characterized in that, The lower end of the watch body (1) is provided with the same structure as the limiting component (5), and the upper end of the watch front cover (2) is provided with a mounting block (21), and mounting holes are symmetrically opened on the mounting block (21).

8. A quick-release pressure gauge according to claim 1, characterized in that, A glass plate (22) is installed on the front cover (2) of the watch, and a watch head connecting pipe (13) is connected to the lower end of the watch body (1).

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