CN217466207U - Handheld pressure tester capable of automatically releasing pressure - Google Patents
Handheld pressure tester capable of automatically releasing pressure Download PDFInfo
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- CN217466207U CN217466207U CN202221481599.1U CN202221481599U CN217466207U CN 217466207 U CN217466207 U CN 217466207U CN 202221481599 U CN202221481599 U CN 202221481599U CN 217466207 U CN217466207 U CN 217466207U
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- pressure
- compression
- ejector rod
- stop block
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Abstract
The utility model relates to a hand-held pressure tester capable of automatically releasing pressure, which comprises a shell, a top rod and a compression stop block, wherein the top rod and the compression stop block are arranged in the shell; when the taper spring is in a natural state, the compression rod pushes the compression stop block to move backwards through the obliquely arranged ejector rod, then the taper spring and the reset spring are compressed until the rear end of the ejector rod extends into a pressure relief hole in the front end of the compression stop block, and the compression stop block and the reset spring reset. The utility model discloses simple structure, convenient operation reduces the time and the cost of labor of test, but also can realize automatic release when the pressure of exerting reaches the set pressure value of product.
Description
Technical Field
The utility model belongs to the technical field of hand-held type pressure test, concretely relates to but hand-held pressure tester of automatic release.
Background
After various products such as medical instruments are processed, pressure tests need to be performed on individual parts of the products to check whether the parts meet the pressure requirements in the normal use process. For example, in order to facilitate grasping and applying force during use of medical devices such as orthopedic forceps, a handle sleeve is attached to a handle. Before the medical instrument is put into use, the pulling force which can be borne by the handle sleeve of the medical instrument needs to be tested, namely, the pressure is applied to the handle sleeve in the falling direction of the handle sleeve, and when the pressure reaches a set pressure value, the handle sleeve does not fall off, so that the condition that the handle sleeve falls off when the medical instrument is used can be ensured.
The current pressure detection mode is generally two, firstly, the pressure test is carried out through a pressure tester, the product is transferred to a laboratory by the test mode, and professional operators of the pressure tester are required to carry out pressure test operation, so that the time and labor cost for product test are increased, and the processing efficiency of the product is directly influenced.
The second is through traditional hand-held type pressure tester test, and in this kind of test process, when the pressure that applys to the product reached the settlement pressure value, the pressure tester can't carry out automatic release action, and operating personnel then can not stop the pressurization immediately, and too high pressure then causes the damage on product surface easily, directly influences product quality, improves manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but hand-held pressure tester of automatic release to solve the unable automatic release's of pressure test in-process problem.
The utility model discloses a but hand-held pressure tester of automatic release is realized like this:
a handheld pressure tester capable of automatically releasing pressure comprises a shell, a top rod and a compression stop block, wherein the top rod and the compression stop block are installed in the shell;
when the taper spring is in a natural state, the compression rod pushes the compression stop block to move backwards through the obliquely arranged ejector rod, then the taper spring and the reset spring are compressed until the rear end of the ejector rod extends into the pressure relief hole at the front end of the compression stop block, and the compression stop block and the reset spring reset.
Furthermore, a compression cavity and a pressure relief cavity positioned at the rear side of the compression cavity are arranged in the shell, and the compression cavity is communicated with the pressure relief cavity through a guide hole;
the ejector rod is arranged in the compression cavity, and the compression stop block is arranged in the pressure relief cavity.
Further, the ejector pin includes the ejector pin main part and is located the spacing portion of ejector pin main part front end, and be located ejector pin main part rear end just can pass the guiding hole with compression stop block complex cooperation portion.
Further, when the taper spring is in an automatic state, the rear end of the matching part is located in the guide hole.
Furthermore, the front end surface of the taper spring is an inclined surface with the upper end inclined backwards.
Furthermore, the rear end face of the pressure lever is of a cambered surface structure.
Further, the inner diameter of the pressure relief hole is smaller than that of the guide hole.
Further, the outer diameter of the ejector rod main body is larger than that of the matching portion, a conical portion is arranged between the ejector rod main body and the matching portion, and the front end face of the guide hole is an inclined face with the same inclination direction as that of the conical portion.
Furthermore, a pressure head is installed at the front end of the pressure rod.
Further, the shell comprises a detection sleeve, a handle and a cover cap which are sequentially connected from front to back.
After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:
the utility model discloses can adopt the mode of handing directly to carry out the pressure test to the product, not only easy operation is convenient, reduces the time and the cost of labor of test, but also can realize automatic release when the pressure that applys reaches the settlement pressure value of product, can remind operating personnel to test fast and accomplish, avoids continuing to increase the condition that pressure caused the damage on product surface, guarantees the quality of product.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a handheld pressure tester capable of automatically releasing pressure according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mandril of the handheld pressure tester capable of automatically releasing pressure according to the preferred embodiment of the invention;
FIG. 3 is a cross-sectional view of the housing of the hand-held pressure tester with automatic pressure relief according to the preferred embodiment of the present invention;
in the figure: the device comprises a mandril 1, a mandril main body 1-1, a limiting part 1-2, a matching part 1-3, a conical part 1-4, a compression stop block 2, a pressure lever 3, a taper spring 4, a reset spring 5, a pressure relief hole 6, a compression cavity 7, a pressure relief cavity 8, a guide hole 9, an inclined plane 10, a pressure head 11, a detection sleeve 12, a handle 13 and a cap 14.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, a hand-held pressure tester capable of automatically releasing pressure comprises a housing, a top rod 1 and a compression stop block 2 which are arranged in the housing, wherein the front side of the top rod 1 is provided with a pressure rod 3 of which the front end extends out of the housing, the rear part of the top rod 1 is sleeved with a taper spring 4, and the rear side of the compression stop block 2 is provided with a return spring 5; when the taper spring 4 is in a natural state, the compression rod 3 pushes the compression stopping block 2 to move backwards through the ejector rod 1 which is obliquely arranged, then the taper spring 4 and the reset spring 5 are compressed until the rear end of the ejector rod 1 extends into the pressure relief hole 6 at the front end of the compression stopping block 2, and the compression stopping block 2 and the reset spring 5 reset.
In order to facilitate the installation and the matching of the compression rod 3, the ejector rod 1, the compression stop block 2, the taper spring 4 and the reset spring 5, a compression cavity 7 and a pressure relief cavity 8 positioned at the rear side of the compression cavity 7 are arranged in the shell, and the compression cavity 7 is communicated with the pressure relief cavity 8 through a guide hole 9.
Specifically, the cavity inside the housing is partitioned into a compression chamber 7 on the front side and a discharge chamber 8 on the rear side by a guide hole 9 having a smaller inner diameter.
Wherein, the ejector rod 1 is arranged in the compression cavity 7, the compression stop block 2 is arranged in the pressure relief cavity 8, and the ejector rod and the compression stop block are matched through the guide hole 9
And the front end of the pressure rod 3 extends from the front end of the compression chamber 7 to the outside of the housing, and the pressure rod 3 can perform axial movement in the housing.
In order to realize the matching of the ejector rod 1, the taper spring 4 and the compression stop block 2, the ejector rod 1 comprises an ejector rod main body 1-1, a limiting part 1-2 positioned at the front end of the ejector rod main body 1-1 and a matching part 1-3 positioned at the rear end of the ejector rod main body 1-1 and capable of passing through the guide hole 9 to be matched with the compression stop block 2.
Specifically, the taper spring 4 is sleeved on the ejector rod 1 and located on the rear side of the limiting portion 1-2, and the outer diameter of the limiting portion 1-2 is larger than that of the front end of the taper spring 4, so that when the ejector rod 1 moves backwards, the taper spring 4 can be compressed backwards through the limiting portion 1-2.
Because the inner diameter of the guide hole 9 is smaller than that of the compression cavity 7, in order to enable the matching part 1-3 to pass through the guide hole 9 to be matched with the compression stop block 2 when the ejector rod 1 moves backwards, when the taper spring 4 is in an automatic state, the rear end of the matching part 1-3 is positioned in the guide hole 9.
If the ejector rod 1 is located in the axis direction of the taper spring 4, the matching part 1-3 of the ejector rod can directly extend into the pressure relief hole 6 of the compression stop block 2 in the process of pressure application in the test, and the automatic pressure relief effect cannot be realized, so that the ejector rod 1 needs to be placed obliquely before the pressure test, namely the taper spring 4 is in a natural state, so that the ejector rod can be abutted against the front end face of the compression stop block 2 to push the compression stop block 2 to move backwards.
The front end surface of the taper spring 4 is an inclined surface 10 whose upper end is inclined rearward so that the carrier rod 1 can be inclined.
The inclined plane 10 structure of the front end of the taper spring 4, and the structure that the external diameter of the front end of the ejector rod 1 is large and the external diameter of the rear end is small can enable the matching part 1-3 of the ejector rod 1 to incline downwards under the action of gravity, so that the ejector rod 1 abuts against the front end face of the compression stop block 2 when moving backwards, and the compression stop block 2 is pushed to move backwards.
In order to avoid the interference of the compression bar 3 on the inclination of the ejector rod 1, the rear end surface of the compression bar 3 is of a cambered surface structure.
The cambered surface structure of the rear end surface of the pressure lever 3 can facilitate the natural inclination of the mandril 1 in the initial state.
In order that the rear end of the fitting portion 1-3 can abut against the front end face of the compression stop block 2 during testing without entering the relief hole 6 so as to complete the testing process, the inner diameter of the relief hole 6 is smaller than the inner diameter of the guide hole 9.
In the test process, in order to facilitate the correction of the inclination state of the ejector rod 1 so as to complete the pressure relief action, the outer diameter of the ejector rod main body 1-1 is larger than that of the matching part 1-3, a conical part 1-4 is arranged between the ejector rod main body 1-1 and the matching part, and the front end surface of the guide hole 9 is an inclined surface 10 with the same inclination direction as that of the conical part 1-4.
Specifically, the front end of the inclined surface 10 is inclined outward, that is, the compression chamber 7 with a larger inner diameter is transited to the guide hole 9 with a smaller inner diameter through the inclined surface 10.
During testing, pressure is applied by the pressure lever 3, the compression stop block 2 is pushed by the inclined ejector rod 1 to move backwards continuously until the conical part 1-4 of the ejector rod 1 is contacted with the inclined plane 10 on the front end face of the guide hole 9, the ejector rod 1 moves backwards continuously at the moment, the inclined plane 10 can gradually correct the inclined state of the ejector rod 1 due to the matching of the conical part 1-4 and the inclined plane 10, the rear end of the ejector rod 1 moves upwards continuously until the conical part 1-4 enters the guide hole 9, the matching part 1-3 is opposite to the pressure relief hole 6 and extends into the pressure relief hole 6 at the moment, and the compression stop block 2 moves forwards under the action of the reset spring 5 to reset, so that pressure relief is completed.
In order to facilitate contact with the product, a pressure head 11 is mounted at the front end of the pressure rod 3.
For convenient assembly and disassembly, the shell comprises a detection sleeve 12, a handle 13 and a cap 14 which are connected in sequence from front to back.
Specifically, the handle 13 is sleeved at the rear end of the detection sleeve 12 and can be connected with the detection sleeve through threads, the cap 14 is sleeved at the rear end of the handle 13 and can also be connected with the detection sleeve through threads, and the detection sleeve is simple to disassemble and convenient to use.
The front end of the detection sleeve 12 is provided with a tapered transition portion extending forward, and the pressing rod 3 extends out from the tapered transition portion, so that the movement of the pressing rod 3 is guided.
Before testing a product, firstly determining a set pressure value of the product, and selecting the taper spring 4 with the compression elastic force corresponding to the set pressure value during the pressure stroke d according to the compression stroke d of the taper spring 4 and the set pressure value as the compression stroke d of the taper spring 4 is determined in the testing process.
Taking an orthopedic forceps as an example, the taper spring 4 is first selected specifically.
Specifically, if the set pressure value of the handle sleeve of the orthopedic forceps is 20N, namely, a great pulling force is applied by an operator during normal use of the orthopedic forceps, and the pulling force is 20N, the handle sleeve cannot fall off, namely, the assembly of the handle sleeve of the orthopedic forceps is qualified. At this time, according to the compression stroke d, the taper spring 4 having a spring compression elastic force value equal to 20N at this compression stroke is selected and fitted into the pressure tester.
Before testing, the taper spring 4 and the return spring 5 are in a natural state, and the ejector rod 1 is in a state that the rear end is inclined downwards.
The test is started, the pressure head 11 of the pressure lever 3 is pressed against the inner end of the handle sleeve, and the pressure tester is pushed to continuously apply pressure in the falling direction of the handle sleeve. At the moment, the compression rod 3 overcomes the elasticity of the taper spring 4 to push the ejector rod 1 to move backwards, and the matching part 1-3 of the ejector rod 1 is propped against the front end surface of the compression stop block 2, namely the lower part of the pressure relief hole 6, so that the compression stop block 2 is pushed to move backwards by overcoming the elasticity of the reset spring 5. When the conical part 1-4 of the ejector rod 1 is contacted with the inclined surface 10, the inclined state of the ejector rod 1 is continuously corrected until the conical part 1-4 is separated from the inclined surface 10 and enters the guide hole 9, at the moment, the matching part 1-3 is opposite to the pressure relief hole 6, the matching part 1-3 extends into the pressure relief hole 6, the compression stop block 2 moves forwards under the action of the reset spring 5 to reset, and pressure relief is completed.
And in the moment that the conical part 1-4 enters the guide hole 9, the compression stroke d of the conical spring 4 is completed, namely the pressure applied by the pressure tester reaches a set pressure value, the operator can be quickly reminded of completing the test by resetting the compression stop block 2 without continuously pressurizing, and the damage to the surface of the product is avoided.
The utility model discloses can accomplish the test to product pressure through handheld mode, overall structure is simple, convenient operation. And can also realize automatic release at the test in-process to remind operating personnel to test the completion, avoid the too big damage that causes the product of pressure, guarantee product quality, the practicality is splendid.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The handheld pressure tester capable of automatically relieving pressure is characterized by comprising a shell, a push rod (1) and a compression stop block (2) which are arranged in the shell, wherein the front side of the push rod (1) is provided with a press rod (3) of which the front end extends out of the shell, the rear part of the push rod (1) is sleeved with a taper spring (4), and the rear side of the compression stop block (2) is provided with a return spring (5);
when the taper spring (4) is in a natural state, the compression rod (3) pushes the compression stopping block (2) to move backwards through the obliquely placed ejector rod (1), then the taper spring (4) and the reset spring (5) are compressed until the rear end of the ejector rod (1) extends into a pressure relief hole (6) in the front end of the compression stopping block (2), and the compression stopping block (2) and the reset spring (5) reset.
2. The hand-held pressure tester capable of automatically relieving pressure according to claim 1, wherein a compression chamber (7) and a pressure relief chamber (8) located at the rear side of the compression chamber (7) are arranged in the housing, and the compression chamber (7) and the pressure relief chamber (8) are communicated through a guide hole (9);
the ejector rod (1) is installed in the compression cavity (7), and the compression stop block (2) is installed in the pressure relief cavity (8).
3. The hand-held pressure tester capable of automatically relieving pressure according to claim 2, wherein the ejector rod (1) comprises an ejector rod main body (1-1) and a limiting part (1-2) located at the front end of the ejector rod main body (1-1), and an engaging part (1-3) located at the rear end of the ejector rod main body (1-1) and capable of passing through the guide hole (9) to engage with the compression stop block (2).
4. The hand-held pressure tester with automatic pressure relief according to claim 3, characterized in that the rear end of the engagement portion (1-3) is located in the guide hole (9) when the taper spring (4) is in the automatic state.
5. The hand-held pressure tester with automatic pressure relief according to claim 3, characterized in that the front end face of the taper spring (4) is an inclined face with the upper end inclined backwards.
6. The hand-held pressure tester capable of automatically relieving pressure according to claim 1, wherein the rear end face of the pressure lever (3) is of a cambered surface structure.
7. The hand-held pressure tester with automatic pressure relief according to claim 2, characterized in that the internal diameter of the relief bore (6) is smaller than the internal diameter of the guide bore (9).
8. The hand-held pressure tester with automatic pressure relief according to claim 3, wherein the ejector body (1-1) has an outer diameter larger than that of the engagement portion (1-3) and a tapered portion (1-4) is provided therebetween, and the front end face of the guide hole (9) is an inclined face having the same inclination direction as the tapered portion (1-4).
9. The hand-held pressure tester with automatic pressure relief according to claim 1, characterized in that the front end of the pressure lever (3) is provided with a pressure head (11).
10. The hand-held pressure tester with automatic pressure relief according to claim 1, wherein the housing comprises a detection sleeve (12), a handle (13) and a cap (14) connected in series from front to back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221481599.1U CN217466207U (en) | 2022-06-13 | 2022-06-13 | Handheld pressure tester capable of automatically releasing pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221481599.1U CN217466207U (en) | 2022-06-13 | 2022-06-13 | Handheld pressure tester capable of automatically releasing pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217466207U true CN217466207U (en) | 2022-09-20 |
Family
ID=83238675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221481599.1U Active CN217466207U (en) | 2022-06-13 | 2022-06-13 | Handheld pressure tester capable of automatically releasing pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217466207U (en) |
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2022
- 2022-06-13 CN CN202221481599.1U patent/CN217466207U/en active Active
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