CN214224427U

CN214224427U - Pressure gauge convenient to connect

Info

Publication number: CN214224427U
Application number: CN202120344294.5U
Authority: CN
Inventors: 林晓峰; 林雷震; 林秉论
Original assignee: Hongqi Meter Co ltd
Current assignee: Hongqi Meter Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-09-17
Anticipated expiration: 2031-02-05

Abstract

The utility model relates to a manometer convenient to connect, it includes the manometer body, the lower extreme of manometer body is provided with the connecting block, set up threaded hole on the terminal surface that the manometer body was kept away from to the connecting block, set up the first connecting hole that is linked together with the screw hole on the terminal surface that the connecting block is close to the manometer body, first connecting hole is linked together with the inner chamber of manometer body, be connected with the conversion head on the connecting block, it has the second connecting hole to run through on the conversion head, the conversion head includes installation department and connecting portion, the second connecting hole extends along the direction of installation department to connecting portion, set up the mounting thread with screw hole threaded connection on the installation department, set up the connecting thread with source part threaded connection on the connecting portion. This application has the effect that reduces stock pressure.

Description

Pressure gauge convenient to connect

Technical Field

The application relates to the field of pressure gauges, in particular to a pressure gauge convenient to connect.

Background

The pressure gauge is a meter which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is very commonly applied and almost extends to all the fields of industrial processes and scientific researches. The method is widely available in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance plants and shops and the like.

In the related art, the pressure gauge is generally mounted by using a screw thread. When the screw thread of the source taking component is connected with different screw threads, the pressure gauge needs to be provided with the screw thread matched with the screw thread on the source taking component during production, and the pressure gauge with the screw thread is not used for stock in large quantity, so that the stock pressure is high when an order of the screw thread pressure gauge not used is received.

SUMMERY OF THE UTILITY MODEL

In order to reduce the stock pressure, this application provides a manometer convenient to connect.

The application provides a manometer convenient to connect adopts following technical scheme:

the utility model provides a manometer convenient to connect, includes the manometer body, the lower extreme of manometer body is provided with the connecting block, set up threaded hole on the terminal surface that the manometer body was kept away from to the connecting block, set up the first connecting hole that is linked together with the screw hole on the terminal surface that the connecting block is close to the manometer body, first connecting hole is linked together with the inner chamber of manometer body, be connected with the conversion head on the connecting block, it has the second connecting hole to run through on the conversion head, the conversion head includes installation department and connecting portion, the second connecting hole extends along the direction of installation department to connecting portion, set up the installation screw thread with screw hole threaded connection on the installation department, set up the connecting thread with the part threaded connection that takes source on the connecting portion.

By adopting the technical scheme, when the pressure gauge is installed, the conversion head with the size of the connecting thread matched with that of the upper thread of the source taking component is selected firstly, then the conversion head is in threaded connection with the connecting block, and then the pressure gauge body provided with the conversion head is connected with the source taking component. Through producing the conversion head with the same installation thread size and different connection thread sizes, the pressure gauge body can be connected with the source taking component with different thread sizes, only one pressure gauge body and one connecting block need to be produced when the pressure gauge body is produced, and stock pressure is reduced.

Optionally, the outer wall of the connecting block is provided with two parallel connecting surfaces.

Through adopting above-mentioned technical scheme, when connecting conversion head and connecting block, the staff passes through the connecting face that two are parallel to each other on the spanner centre gripping connecting block outer wall for the connecting block relatively fixed rotates the conversion head again, and the connecting block of being convenient for is connected with the conversion head.

Optionally, a tapered hole communicated with the first connecting hole is formed in the hole wall of the threaded hole far away from the opening of the threaded hole, the sectional area of the end part of the mounting part far away from the connecting part is gradually increased along the direction from the mounting part to the connecting part, and when the conversion head is in threaded connection with the connecting block, the side wall of the end part of the mounting part far away from the connecting part is abutted against the hole wall of the tapered hole.

Through adopting above-mentioned technical scheme, when connecting conversion head and connecting block, rotate the conversion head for the lateral wall of the tip of connecting portion is kept away from to the installation department supports tightly with the pore wall of bell mouth, thereby has increased the area of contact of conversion head with the connecting block, has further blockked the fluid and has flowed out from the clearance of conversion head with the connecting block, has promoted the compactness that conversion head and connecting block are connected.

Optionally, a sealing ring is arranged at the bottom of the threaded hole.

Through adopting above-mentioned technical scheme, the sealing washer has further promoted the compactness that conversion head and connecting block are connected to make the difficult clearance outflow of following conversion head and connecting block of fluid.

Optionally, the connecting block further comprises a rotating part connected between the mounting part and the connecting part, and two parallel rotating surfaces are arranged on the outer wall of the rotating part.

Through adopting above-mentioned technical scheme, when rotating the change-over head, the staff helps rotating the change-over head through the two faces of rotation that are parallel to each other on the spanner centre gripping rotating part outer wall, has promoted the convenience when change-over head and the part of getting the source are connected.

Optionally, a rotating rod is connected to the outer wall of the rotating portion.

Through adopting above-mentioned technical scheme, when rotating the change head, the staff grips the dwang earlier, then rotates the change head through the dwang for the staff need not to look for the instrument and rotates the change head, helps the staff to connect the change head and gets the source part.

Optionally, the dwang has been seted up along self length direction and has been rotated the hole, be fixed with the sliding block on the outer wall of rotation portion, the sliding block slides and sets up in rotating the hole.

Through adopting above-mentioned technical scheme, the sliding block slides and sets up in rotating the hole for the dwang can be followed the extending direction that rotates the hole and slided, and the staff of being convenient for is located different positions and rotates the conversion head, helps connecting conversion head and source part.

Optionally, one side of the sliding block, which is far away from the rotating part, is detachably connected with a limiting block, and the width of the limiting block is greater than that of the rotating hole.

Through adopting above-mentioned technical scheme, stopper restriction dwang drops from the sliding block when rotating, and the stopper can be dismantled with the sliding block and be connected for be convenient for change when the dwang damages.

Optionally, the sliding grooves for embedding the end parts of the rotating rods are formed in the side walls of the two sides of the sliding block.

Through adopting above-mentioned technical scheme, when using the dwang to rotate the crossover head, slide the tip of dwang to inlaying earlier and establish in the sliding tray, the crossover head is rotated to the rethread dwang. After the use, take off the dwang from the sliding block, restriction non-staff passes through the dwang and rotates the crossover head.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the pressure gauge is installed, the conversion head with the size of the connecting thread matched with the size of the thread on the source taking component is connected with the connecting block, and then the conversion head is connected with the source taking component; by producing the conversion heads with different connecting thread sizes, the same pressure gauge body and the same connecting block can be connected with the source taking components with different thread sizes, so that the stock pressure is reduced;

2. when the conversion head is connected with the connecting block, the conversion head is rotated, so that the side wall of the end part of the mounting part, which is far away from the connecting part, is abutted against the hole wall of the conical hole, and therefore fluid is not easy to flow out from a gap between the conversion head and the connecting block, and the tightness of the connection between the conversion head and the connecting block is further improved by the sealing ring arranged at the hole bottom of the threaded hole;

3. when the conversion head is rotated, the rotating rod slides to a position suitable for rotating the conversion head, and then the conversion head is rotated through the rotating rod, so that the conversion head and the source taking part can be connected by a worker.

Drawings

FIG. 1 is a schematic structural view of example 1.

FIG. 2 is an exploded view of example 1

FIG. 3 is a schematic sectional view of example 1.

Fig. 4 is an exploded view of the switching head, the slider, the stopper, and the rotating lever in embodiment 2.

Fig. 5 is an exploded view of the transducing head, the slider, and the rotating lever of embodiment 3.

Description of reference numerals: 1. a pressure gauge body; 2. connecting blocks; 21. a connecting surface; 22. a threaded hole; 23. a tapered hole; 24. a seal ring; 25. a first connection hole; 3. a conversion head; 31. an installation part; 311. installing threads; 32. a rotating part; 33. a connecting portion; 331. connecting threads; 34. a second connection hole; 35. a rotating surface; 4. a slider; 41. a limiting block; 42. a sliding groove; 5. rotating the rod; 51. the hole is rotated.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses manometer convenient to connect.

Example 1

Referring to fig. 1, the pressure gauge convenient to connect includes a pressure gauge body 1, a connecting block 2 fixed at the lower end of the pressure gauge body 1, and a converter 3 connected to the connecting block 2.

Referring to fig. 2 and 3, three groups of first parallel surfaces are arranged on the outer wall of the connecting block 2, each group of first parallel surfaces comprises two mutually parallel connecting surfaces 21, and the cross section of the outer wall of the connecting block 2 is a regular hexagon, so that a worker can conveniently clamp and rotate through a wrench. Threaded hole 22 is opened on the terminal surface of connecting block 2 keeping away from manometer body 1, and threaded hole 22 is kept away from and is seted up bell mouth 23 on its open-ended pore wall, and the opening size of bell mouth 23 is steadilyd decrease along the direction of being close to threaded hole 22 to keeping away from threaded hole 22.

Referring to fig. 1 and 3, a sealing ring 24 is fixed on the wall of the threaded hole 22 away from the opening, and the sealing ring 24 is an O-shaped rubber ring. The wall of the conical hole 23 far away from the thread is provided with a first connecting hole 25 in a penetrating manner, and the first connecting hole 25 is communicated with the inner cavity of the pressure gauge body 1.

Referring to fig. 2, a second connection hole 34 penetrates through the conversion head 3, the conversion head 3 includes an installation portion 31, a rotation portion 32, and a connection portion 33, which are integrally formed, and the second connection hole 34 extends in a direction from the installation portion 31 to the connection portion 33. The outer wall of the mounting portion 31 is provided with mounting threads 311, and the mounting threads 311 are used for being in threaded connection with the threaded holes 22. The sectional area of the end part of the mounting part 31 far away from the connecting part 33 increases progressively along the direction from the mounting part 31 to the connecting part 33, and when the mounting part 31 is in threaded connection with the connecting block 2, the side wall of the end surface of the mounting part 31 far away from the connecting part 33 is abutted against the hole wall of the tapered hole 23. Be provided with three groups of second parallel surfaces on the outer wall of rotation portion 32, every group second parallel surface all includes two rotating surface 35 that are parallel to each other, and the cross-section of rotation portion 32 outer wall is regular hexagon, and the staff of being convenient for passes through the spanner centre gripping and rotates. The outer wall of the connecting part 33 is provided with a connecting thread 331, and the connecting thread 331 is used for being in threaded connection with the source taking part.

The implementation principle of the embodiment 1 is as follows: when the pressure gauge is installed, the conversion head 3 and the connecting block 2 are clamped through the wrench respectively, and then the wrench is rotated to connect the conversion head 3 with the connecting block 2 in a threaded mode. Then the conversion head 3 is rotated to make the conversion head 3 connected with the source part by screw thread, and the fluid passes through the second connecting hole 34 and the first connecting hole 25 in turn to enter the inner cavity of the pressure gauge body 1. The conversion head 3 with the same size of the installation thread 311 and the same size of the connection thread 331 is produced, so that the pressure gauge body 1 can be connected with the source taking part with different thread sizes, only one pressure gauge body 1 and one connection block 2 need to be produced when the pressure gauge is produced, and the stock pressure is reduced.

Example 2

Referring to fig. 4, the present embodiment is different from embodiment 1 in that a rotation lever 5 is connected to an outer wall of a rotation portion 32, and the rotation lever 5 is provided with a rotation hole 51 along a longitudinal direction thereof. The outer wall of the rotating part 32 is fixed with a sliding block 4, the thickness of the sliding block 4 is larger than that of the rotating rod 5, and the sliding block 4 is arranged in the rotating hole 51 in a sliding mode. The sliding block 4 is screwed with a limiting block 41, and the width of the limiting block 41 is larger than that of the rotating hole 51.

The implementation principle of the embodiment 2 is as follows: when rotating the change head 3, slide dwang 5 to the suitable position of rotating the change head 3 of staff earlier, rethread dwang 5 rotates the change head 3, and the lateral wall and the stopper 41 butt of dwang 5 to dwang 5 drops from sliding block 4 when restricting dwang 5 to rotate.

Example 3

Referring to fig. 5, the present embodiment is different from embodiment 1 in that a rotation lever 5 is connected to an outer wall of a rotation portion 32, and the rotation lever 5 is provided with a rotation hole 51 along a longitudinal direction thereof. The outer wall of the rotating part 32 is fixed with a sliding block 4, the width of the sliding block 4 is smaller than that of the rotating hole 51, the side walls of the two sides of the sliding block 4 are provided with sliding grooves 42, the width of the sliding grooves 42 is slightly larger than the thickness of the rotating rod 5, and the sliding grooves 42 are used for the end parts of the rotating rod 5 to be embedded.

The implementation principle of the embodiment 3 is as follows: when the rotating rod 5 is used for rotating the conversion head 3, the rotating rod 5 is moved to be embedded in the adjacent sliding groove 42 along the length direction of the rotating rod 5, the conversion head 3 is rotated through the rotating rod 5, the side wall of the rotating rod 5 is abutted to the groove wall of the sliding groove 42, and therefore the rotating rod 5 is limited to fall off from the sliding block 4 when the rotating rod 5 rotates. After the manometer installation was accomplished, take off dwang 5 from sliding block 4 to restricted non-staff and dismantled the manometer through dwang 5.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a manometer convenient to connect, includes manometer body (1), its characterized in that: the lower end of the pressure gauge body (1) is provided with a connecting block (2), the end surface of the connecting block (2) far away from the pressure gauge body (1) is provided with a threaded hole (22), a first connecting hole (25) communicated with the threaded hole (22) is formed in the end face, close to the pressure gauge body (1), of the connecting block (2), the first connecting hole (25) is communicated with the inner cavity of the pressure gauge body (1), the connecting block (2) is connected with a conversion head (3), a second connecting hole (34) penetrates through the conversion head (3), the conversion head (3) comprises a mounting part (31) and a connecting part (33), the second connection hole (34) extends in a direction from the mounting portion (31) to the connection portion (33), the mounting part (31) is provided with a mounting thread (311) in threaded connection with the threaded hole (22), the connecting part (33) is provided with a connecting thread (331) which is in threaded connection with the source taking part.

2. A pressure gauge for facilitating connection according to claim 1, wherein: the outer wall of the connecting block (2) is provided with two parallel connecting surfaces (21).

3. A pressure gauge for facilitating connection according to claim 1, wherein: threaded hole (22) are kept away from and are offered taper hole (23) that are linked together with first connecting hole (25) on its open-ended pore wall, the sectional area of the tip of connecting portion (33) is kept away from in installation department (31) increases progressively along the direction of installation department (31) to connecting portion (33), when conversion head (3) and connecting block (2) threaded connection, lateral wall and the pore wall of taper hole (23) of the tip of connecting portion (33) are kept away from in installation department (31) support tightly.

4. A pressure gauge for facilitating connection according to claim 1, wherein: and a sealing ring (24) is arranged at the bottom of the threaded hole (22).

5. A pressure gauge for facilitating connection according to claim 1, wherein: connecting block (2) still including connecting rotation portion (32) between installation department (31) and connecting portion (33), be provided with two rotating face (35) that are parallel to each other on the outer wall of rotation portion (32).

6. A conveniently connected pressure gauge according to claim 5, wherein: the outer wall of the rotating part (32) is connected with a rotating rod (5).

7. A conveniently connected pressure gauge according to claim 6, wherein: dwang (5) have been seted up along self length direction and have been rotated hole (51), be fixed with sliding block (4) on the outer wall of rotation portion (32), sliding block (4) slide to set up in rotating hole (51).

8. A readily connectible pressure gauge as claimed in claim 7, wherein: one side of the sliding block (4) far away from the rotating part (32) is detachably connected with a limiting block (41), and the width of the limiting block (41) is larger than that of the rotating hole (51).

9. A readily connectible pressure gauge as claimed in claim 7, wherein: and sliding grooves (42) for embedding the end parts of the rotating rods (5) are formed in the side walls of the two sides of the sliding block (4).