CN219830176U - Linear pressure gauge and inflator pump - Google Patents
Linear pressure gauge and inflator pump Download PDFInfo
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- CN219830176U CN219830176U CN202320574963.7U CN202320574963U CN219830176U CN 219830176 U CN219830176 U CN 219830176U CN 202320574963 U CN202320574963 U CN 202320574963U CN 219830176 U CN219830176 U CN 219830176U
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- piston
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- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims 1
- 238000009530 blood pressure measurement Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a linear pressure gauge and an inflator pump, wherein the linear pressure gauge comprises a gauge main body, a gauge piston, a pointer, a plug and a dial; the meter body is provided with a meter body cavity for accommodating the meter piston, the meter piston is provided with a spring cavity for at least partially accommodating a compression spring, the plug is connected to one end of the opening of the meter body, one end part of the compression spring is connected with or abutted against the plug, the other end part is connected with or abutted against the inner wall of the spring cavity, the pointer is arranged on or integrally formed with the meter piston, and the dial is arranged on the meter body; the plug is arranged to be adjustable in relative position with the watch body. The embodiment of the utility model can solve the problem that the linear pressure gauge in the prior art cannot ensure accurate pressure measurement stably and reliably for a long time, and can improve the pressure measurement precision at any time, ensure the pressure measurement accuracy and avoid the damage of an inflatable object or potential safety hazard through an adjustable structural design.
Description
Technical Field
The utility model relates to the technical field of pressure gauges, in particular to a linear pressure gauge with a simple structure and easy assembly and an inflator pump comprising the pressure gauge.
Background
The chinese patent No. 201520707384.0 discloses an air compressor with a pen-type pressure gauge, which aims to provide an air compressor with a pen-type pressure gauge which can instantaneously and rapidly react and release excess pressure when the pressure value reaches the set safety pressure maximum value without additionally providing an overpressure safety valve, and has the advantages of complex structure, high processing difficulty and high cost, and the measurement accuracy of the pen-type pressure gauge is difficult to ensure and/or maintain for a long time under the influence of high-frequency vibration of an inflator, namely the accuracy of pressure measurement is lost, so that an elaborate overpressure protection unit of the air compressor loses due protection effect, and an inflated object is damaged or hidden danger is generated.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the utility model provides a linear pressure gauge, which comprises a gauge main body, a gauge piston, a pointer, a plug and a dial;
the meter body is provided with a meter body cavity for accommodating the meter piston, the meter piston is provided with a spring cavity for at least partially accommodating a compression spring, the plug is connected to one end of the opening of the meter body, one end part of the compression spring is connected with or abutted against the plug, the other end part is connected with or abutted against the inner wall of the spring cavity, the pointer is arranged on or integrally formed with the meter piston, and the dial is arranged on the meter body;
the plug is arranged to be adjustable relative to the meter main body, so that the length of the compression spring can be adjusted;
the meter body is provided with an air inlet hole, and the air inlet hole corresponds to the position, outside the tail end of the meter piston, in the cavity of the meter body.
The utility model can also adopt the following optional/preferred schemes:
the plug is in threaded connection or clamping connection with the meter main body.
The plug also comprises an anti-loosening component, wherein an anti-loosening matching part is arranged on the meter main body and matched with the anti-loosening component to lock the relative positions of the plug and the meter main body.
The anti-loose component is of a clamping groove structure, and the anti-loose matching part is of a clamping convex structure.
The clamping groove structure comprises more than two clamping grooves, and each clamping groove is arranged along the peripheral wall of the plug.
The anti-loosening component is an annular component sleeved on the peripheral wall of the plug, more than two clamping grooves are formed in the peripheral wall of the annular component, and more than two clamping grooves are formed in the surface of the annular component;
the annular member is configured to be axially movable along the plug to cause the click-on protrusion to click into the click-on groove to lock the relative positions of the plug and the watch body, or to cause the click-on protrusion to come out of the click-on groove to allow the relative positions of the plug and the watch body to be changed.
The plug further comprises an operation part for adjusting the relative position of the plug and the watch main body, the operation part is positioned at the outer end part of the plug, and the operation part comprises a first operation part and/or a second operation part; the first operation part is an outer peripheral surface positioned at the outer end part of the plug, and the second operation part is an operation rib plate positioned on the end surface of the outer end part of the plug.
The linear manometer further comprises at least one of the following:
the dial is arranged on the scale setting part of the watch main body in a carving, printing or pasting mode;
the dial is also covered with a transparent protective cover;
the meter main body chamber is also provided with a venting hole for venting pressure when the tail end of the meter piston passes over the venting hole;
an LED lamp for illuminating the dial and/or the pointer is also provided.
The LED lamp is arranged below the side of the transparent protective cover and can conduct light guide through the transparent protective cover.
The utility model also provides an inflator pump, which comprises the linear pressure gauge, wherein the linear pressure gauge is communicated with a cylinder cavity of the inflator pump through the air inlet hole.
Compared with the prior art, one or more technical schemes provided by the embodiment of the utility model have at least the following beneficial effects:
the embodiment of the utility model can solve the problem that the linear pressure gauge in the prior art cannot ensure accurate pressure measurement stably and reliably for a long time, and can improve the pressure measurement precision at any time, ensure the pressure measurement accuracy and avoid the damage of an inflatable object or potential safety hazard through an adjustable structural design.
Drawings
FIG. 1 is a schematic view of an exploded view of a linear pressure gauge according to one embodiment of the present utility model;
FIG. 2 is a schematic diagram of an assembled structure of the linear pressure gauge of the embodiment of FIG. 1;
FIG. 3 is an assembled (enlarged) view of the linear pressure gauge of the embodiment of FIG. 1 from another perspective;
FIG. 4 is a schematic cross-sectional view showing an assembled structure of a linear pressure gauge according to another embodiment
Fig. 5 is an exploded view schematically showing a linear pressure gauge according to still another embodiment.
Detailed Description
In order to solve the problem that the linear pressure gauge in the prior art cannot ensure that accurate pressure measurement can be performed stably and reliably for a long time, the utility model provides a linear pressure gauge which comprises a gauge main body, a gauge piston, a pointer, a plug and a dial; the meter body is provided with a meter body cavity for accommodating the meter piston, the meter piston is provided with a spring cavity for at least partially accommodating a compression spring, the plug is connected to one end of the opening of the meter body, one end part of the compression spring is connected with or abutted against the plug, the other end part is connected with or abutted against the inner wall of the spring cavity, the pointer is arranged on or integrally formed with the meter piston, and the dial is arranged on the meter body; the plug is arranged to be adjustable relative to the meter main body, so that the length of the compression spring can be adjusted; the meter body is provided with an air inlet hole, and the air inlet hole corresponds to the position, outside the tail end of the meter piston, in the cavity of the meter body. The embodiment of the utility model can solve the problem that the linear pressure gauge in the prior art cannot ensure that accurate pressure measurement can be performed stably and reliably for a long time, can improve the pressure measurement precision at any time, and avoids the damage of an inflatable object or the generation of potential safety hazards and the like.
In order that the above-recited aspects of the utility model may be better understood, a further description of the utility model will be rendered by reference to specific embodiments thereof which are appended drawings, wherein like reference numerals refer to like parts unless otherwise specified. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the utility model or its applications. The background section of the present utility model may contain background information about the problems or environments of the present utility model and is not necessarily descriptive of the prior art. Accordingly, inclusion in the background section is not an admission of prior art by the applicant.
Example 1
As shown in fig. 1 to 3, the linear pressure gauge of the present embodiment includes a gauge body 10, a gauge piston 20, a pointer 30, a plug 40, and a dial 50, wherein the gauge body 10 is provided with a gauge body chamber 11 for accommodating the gauge piston 20, and an air intake hole 12, the air intake hole 12 is located in the gauge body chamber 11 beyond the end of the gauge piston 20, and the outer periphery of the end of the gauge piston 20 near the body chamber 11 maintains its sealing state with the inner wall of the gauge body chamber 11, for example, by a sealing member 70 such as a sealing ring sleeved in an annular groove of the gauge piston 20.
The plug 40 is connected to one end of the opening of the watch body 10, and the plug 40 is provided to be adjustable in relative position to the watch body 10. The gauge piston 20 is provided with a spring cavity 23 for at least partially accommodating a compression spring, one end part of the compression spring 60 is connected with or abutted against the plug 40, the other end part of the compression spring is connected with or abutted against the inner wall of the spring cavity 23, and the length of the compression spring 60 can be adjusted through the plug 40, so that the linear pressure gauge can accurately measure pressure. The requirement for adjusting the length of the compression spring 60 generally includes pressure measurement inaccuracy due to machining/assembling accuracy of each component of the product, pressure measurement inaccuracy due to abrasion/misalignment of components after long-term use, pressure measurement inaccuracy due to unexpected collision/lack of maintenance, etc.
The pointer 30 is provided on or integrally formed with the timepiece piston 20, and moves in accordance with the movement of the timepiece piston 20. The dial 50 is provided on the meter body 10 for reading a real-time pressure value in cooperation with the pointer 30.
The plug 40 is preferably in threaded connection with the watch body 10, so that the length of the compression spring 60 can be adjusted conveniently, the processing is simple, and the implementation is easy. Of course, a structure such as a snap connection may be adopted, and the purpose of adjusting the length of the compression spring 60 may be achieved.
In another preferred embodiment, the plug 40 further includes a locking member 44, and the watch body 10 is provided with a locking engagement portion 11, and the locking engagement portion 11 is engaged with the locking member 44 to lock the relative positions of the plug 40 and the watch body 10. The locking component 44 may be a clamping groove structural member, the locking matching portion 11 may be a clamping convex structure, and the relative positions of the plug 40 and the meter body 10 may be locked through the mutual matching of the clamping groove structural member and the clamping convex structure, so as to achieve a locking effect. As shown in fig. 3, the locking protrusion is preferably fixed to the portion of the watch body 10 near the locking member 44, and includes a locking point 101 protruding toward the locking groove 441 of the locking groove structural member, and the locking point 101 is preferably configured to have a shape corresponding to the groove shape of the locking groove 441. In order to achieve more accurate adjustment, the clamping groove structure may include more than two clamping grooves 441, each clamping groove 441 is disposed along the outer peripheral wall of the plug 40, and the smaller the distance between adjacent clamping grooves 441, the higher the adjustment accuracy is under the condition that the structural strength is satisfied.
As shown in fig. 2 to 3, the plug 40 further includes an operating portion for adjusting its relative position to the watch body 10, the operating portion being located at an outer end portion of the plug 40. The operation portion is preferably provided to include a first operation portion 41 and a second operation portion 42; the first operation portion 41 is an outer peripheral surface located at an outer end portion of the plug 40, and the second operation portion 42 is an operation rib located on an end surface of the outer end portion of the plug 40. Those skilled in the art will appreciate that the first operating portion 41 and the second operating portion 42 may alternatively be provided. The operation rib as the second operation portion 42 is preferably provided in a recess groove 43 formed in the end surface of the outer end portion of the plug 40, and may be protruded from the end surface of the outer end portion of the plug 40.
As shown in fig. 3, in the present embodiment, the locking member 44 is an annular member that is sleeved on the outer peripheral wall of the plug 40, two or more locking grooves 441 are provided on the outer peripheral wall of the annular member, and the protruding locking structure that is engaged with the locking grooves 441 is provided on the watch body 10. Furthermore, the annular member is preferably configured to be axially movable along the plug 44 so as to cause the click 101 to click into the click slot 441, thereby locking the relative positions of the plug 44 and the watch body 10, or to cause the click 101 to come out of the click slot 441, thereby allowing the relative positions of the plug 44 and the watch body 10 to be changed. The advantage of this design is that the position of the plug 44 is adjusted so as to achieve easy adjustment of the pressure measurement accuracy, and the relative movement of the clamping point 101 and the clamping groove 441 in the axial direction only needs to overcome a small friction force, so that the clamping point 101 is easy to disengage from the clamping groove 441 for rotation adjustment, and then is pushed into the locking position in the clamping groove 441. In other embodiments, the locking member may be a plurality of locking grooves formed directly on the outer peripheral wall of the plug 44, so that a relatively large external force is required to overcome the locking force between the locking protrusion and the locking groove during the adjustment, or the locking protrusion is rotated after being separated from the locking groove by using the elasticity of the material, and then the locking is reset.
Example two
As shown in fig. 4 to 5, in this embodiment, in addition to the first or second embodiment, a vent hole 102 is further provided in the gauge body chamber 11, so as to release pressure when the end of the gauge piston 20 passes over the vent hole 102, thereby controlling the inflation pressure to avoid damaging the product or the inflated object.
In the above embodiments, at least one of the following may be further optionally provided:
the scale of the dial 50 is provided on the scale setting part of the watch body in a carving, printing or sticking manner, or the independent dial 50 is fixedly connected to the watch body 10.
The dial 50 is also covered with a transparent protective cover 80 for protecting the dial 50 and keeping the dial clean and easy to identify.
An LED lamp 90 for illuminating the dial 50 and/or the pointer 30 is provided, and the LED lamp 90 is preferably provided on the mounting portion 103 of the watch body 10 and below the side of the transparent cover 80, so as to illuminate the dial 50 directly and to conduct light guiding and reflection through the transparent cover 80 to illuminate the dial 50 better, and the light source is fully utilized, so that the entire dial 50 can be illuminated by using a less powerful LED lamp.
Example III
This embodiment provides an inflator pump, including a linear pressure gauge as described in any of the above, where the linear pressure gauge is directly or indirectly connected to the cylinder chamber of the inflator pump through the air inlet hole 12.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The linear pressure gauge is characterized by comprising a gauge main body, a gauge piston, a pointer, a plug and a dial;
the meter body is provided with a meter body cavity for accommodating the meter piston, the meter piston is provided with a spring cavity for at least partially accommodating a compression spring, the plug is connected to one end of the opening of the meter body, one end part of the compression spring is connected with or abutted against the plug, the other end part is connected with or abutted against the inner wall of the spring cavity, the pointer is arranged on or integrally formed with the meter piston, and the dial is arranged on the meter body;
the plug is arranged to be adjustable relative to the meter main body, so that the length of the compression spring can be adjusted;
the meter body is provided with an air inlet hole, and the air inlet hole corresponds to the position, outside the tail end of the meter piston, in the cavity of the meter body.
2. The linear manometer of claim 1, wherein the plug is threaded or snap-fit with the main body.
3. The linear manometer of claim 1, wherein the plug further comprises a locking member, and the main body is provided with a locking engagement portion, and the locking engagement portion engages with the locking member to lock the relative positions of the plug and the main body.
4. The linear manometer of claim 3, wherein the locking member is a snap groove structure and the locking mating portion is a snap protrusion structure.
5. The linear manometer of claim 4, wherein the slot structure comprises two or more slots, each slot being disposed along the peripheral wall of the plug.
6. The linear manometer of claim 3, wherein,
the locking component is more than two clamping grooves arranged on the peripheral surface of the plug along the circumferential direction, the meter main body is provided with clamping protrusions which can be respectively clamped into the clamping grooves to lock the relative positions of the plug and the meter main body, the relative positions of the plug and the meter main body are locked through the mutual matching of the clamping grooves and the clamping protrusions, or,
the anti-loosening component is an annular component sleeved on the outer peripheral wall of the plug, more than two clamping grooves are formed in the outer peripheral wall of the annular component, and clamping protrusions matched with the clamping grooves are formed in the meter main body;
the annular member is configured to be axially movable along the plug to cause the click-on protrusion to click into the click-on groove to lock the relative positions of the plug and the watch body, or to cause the click-on protrusion to come out of the click-on groove to allow the relative positions of the plug and the watch body to be changed.
7. The linear manometer of claim 1, wherein the bulkhead further comprises an operating part for adjusting its relative position to the main body of the manometer, the operating part being located at an outer end of the bulkhead, the operating part comprising a first operating part and/or a second operating part;
the first operation part is an outer peripheral surface positioned at the outer end part of the plug, and the second operation part is an operation rib plate positioned on the end surface of the outer end part of the plug.
8. The linear manometer of claim 1, further comprising at least one of the following:
the dial is arranged on the scale setting part of the watch main body in a carving, printing or pasting mode, or an independent dial is fixedly connected on the watch main body;
the dial is also covered with a transparent protective cover;
an LED lamp for illuminating the dial and/or the pointer is also arranged;
the gauge body chamber is also provided with a vent hole for venting pressure when the end of the gauge piston passes over the vent hole.
9. The linear manometer of claim 8, wherein the LED lamp is disposed laterally below the transparent shield and is capable of directing light through the transparent shield.
10. An inflator pump comprising a linear pressure gauge according to any one of claims 1 to 9, said linear pressure gauge being in communication with the cylinder chamber of said inflator pump via said inlet orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320574963.7U CN219830176U (en) | 2023-03-22 | 2023-03-22 | Linear pressure gauge and inflator pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320574963.7U CN219830176U (en) | 2023-03-22 | 2023-03-22 | Linear pressure gauge and inflator pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219830176U true CN219830176U (en) | 2023-10-13 |
Family
ID=88281422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320574963.7U Active CN219830176U (en) | 2023-03-22 | 2023-03-22 | Linear pressure gauge and inflator pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219830176U (en) |
-
2023
- 2023-03-22 CN CN202320574963.7U patent/CN219830176U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |