CN217059128U

CN217059128U - Contact pressure tester

Info

Publication number: CN217059128U
Application number: CN202122437215.8U
Authority: CN
Inventors: 张伟华; 吴启帆; 张茂钦; 徐向东; 林秀阵
Original assignee: Xiamen Lujia Technology Co ltd
Current assignee: Xiamen Lujia Technology Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-07-26
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a contact pressure tester, it includes host computer, connecting seat and pressure measurement subassembly, the connecting seat set firmly in the host computer, pressure measurement subassembly includes pressure sensor, pressure conduction piece and pressure measurement head, pressure sensor set up in the host computer, pressure conduction piece set up in on the pressure measurement head, pressure measurement head detachably install in on the connecting seat, and make pressure conduction piece and pressure sensor looks butt. The utility model discloses a removable pressure measuring head is installed to detachably on the connecting seat to contact the contact pressure who detects the plum blossom contact through pressure conduction piece on the pressure measuring head and pressure sensor, make a tester be equipped with a plurality of pressure measuring heads and can accomplish the pressure test that has different specification plum blossom contact switchgear, greatly reduced the use cost of tester.

Description

Contact pressure tester

Technical Field

The utility model relates to a check out test set technical field, concretely relates to contact pressure tester.

Background

In the long-term operation process of the switch device, the contact pressure of a moving contact and a static contact of the switch device is an important parameter influencing the current-carrying performance of the switch device, the pressure of a contact finger of a moving contact (a plum blossom contact) of the switch device on a static contact is generated by a spring bundled on the contact finger, when the contact pressure of the contact becomes smaller due to the local or overall loss of elasticity of the spring, the contact resistance is increased, the plum blossom contact generates heat seriously and is oxidized due to larger current circulation, so that the phenomena such as melting and falling of the contact finger, burning of the contact and the like occur, finally, even safety accidents such as fire, explosion and the like can be caused, and therefore, the detection on the moving contact of the switch device is particularly important.

Among the current moving contact tester, it can insert the size that detects out plum blossom contact pressure in the plum blossom contact through the test head, and then judges whether the spring appears and locally or wholly loses elasticity, but the test head mostly all is fixed structure, and a moving contact tester can only detect the plum blossom contact of a specification promptly, to the switchgear that has different specification plum blossom contacts, need be equipped with many testers, leads to use cost height.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above prior art is not enough, provides a contact pressure tester.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a contact pressure tester, includes host computer, connecting seat and pressure measurement subassembly, the connecting seat set firmly in the host computer, pressure measurement subassembly includes pressure sensor, pressure conduction piece and pressure measurement head, pressure sensor set up in the host computer, pressure conduction piece set up in on the pressure measurement head, pressure measurement head detachably install in on the connecting seat, and make pressure conduction piece and pressure sensor looks butt.

Preferably, the pressure measuring head comprises a connecting part and an inserting part, the connecting part is detachably mounted on the connecting seat, the inserting part is arranged at one end of the connecting part, and the pressure conduction block is arranged on the inserting part.

Preferably, the connecting seat is in a sleeve shape, an internal thread is processed on the inner wall of the connecting seat, an external thread is processed on the outer wall of the connecting part, and the connecting seat is in threaded connection with the connecting seat.

Preferably, the pressure measuring head is provided with an insertion cavity with an outward opening, the pressure conduction block extends into the insertion cavity, and one end of the host is inserted into the insertion cavity, so that the pressure sensor is abutted against the pressure conduction block.

Preferably, still include operating handle, operating handle includes installation department and handheld portion, the installation department set firmly in on the host computer, be provided with on the installation department handheld portion, handheld portion is the steering wheel shape.

Preferably, the outer wall of connecting seat is provided with the holding ring, the installation department is the tube-shape, and the inner wall of its one end is formed with the backstop ring, the installation department cover is located on the host computer, and make the backstop ring support lean on in on the holding ring.

Preferably, the main unit comprises a main body, the main body is of a columnar structure, the connecting seat is sleeved in the main body, and the pressure sensor is installed at the front end of the main body.

Preferably, the host computer still includes the shell, the shell is the cover tube-shape, the inner wall processing of shell has the internal thread, the outer wall processing of main part rear end has the external screw thread, and with shell looks spiro union, operating handle is fixed in on the shell.

Preferably, the host computer further comprises a display module and a circuit board, the display module is mounted at the rear end of the main body, the circuit board is mounted in the main body, and the pressure sensor and the display module are respectively connected with the circuit board.

After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:

1. the utility model discloses a removable pressure measuring head is installed to detachably on the connecting seat to contact the contact pressure who detects the plum blossom contact through pressure conduction piece on the pressure measuring head and pressure sensor, make a tester be equipped with a plurality of pressure measuring heads and can accomplish the pressure test that has different specification plum blossom contact switchgear, greatly reduced the use cost of tester.

2. The utility model discloses install operating handle on the host computer, accomplish the plug action of pressure measuring head through operating handle, make the use of tester more convenient.

Drawings

Fig. 1 is one of the perspective views of the present invention;

fig. 2 is a second perspective view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a cross-sectional view of the indenter;

FIG. 5 is a schematic diagram of a host computer;

FIG. 6 is an exploded view of the host computer.

Description of reference numerals:

a host 100, a main body 110, a housing 120, a display module 130, a circuit board 140;

a connecting seat 200, a positioning ring 210;

the pressure measuring component 300, the pressure sensor 310, the pressure conducting block 320, the pressure measuring head 330, the connecting part 331, the inserting part 332 and the inserting cavity 333;

operating handle 400, mounting portion 410, stop ring 411, handheld portion 420.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. In addition, it should be noted that:

the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that a device or element of the present invention must have a particular orientation, and therefore, should not be construed as limiting the present invention.

When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be in communication within the two elements or in interactive relationship with the two elements. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.

Examples

With reference to fig. 1 to 3, the utility model discloses a contact pressure tester, which comprises a host computer 100, a connecting seat 200, a pressure measuring component 300 and an operating handle 400.

The connecting base 200 is fixedly disposed in the main unit 100, in this embodiment, the connecting base 200 is in a sleeve shape, an inner thread is formed on an inner wall of the connecting base 200, and a positioning ring 210 is disposed on an outer wall of the connecting base 200.

As shown in fig. 2 to 4, the pressure measuring assembly 300 includes a pressure sensor 310, a pressure conducting block 320 and a pressure measuring head 330, the pressure sensor 310 is disposed in the host 100, the pressure conducting block 320 is disposed on the pressure measuring head 330, and the pressure measuring head 330 is detachably mounted on the connecting base 200, such that the pressure conducting block 320 abuts against the pressure sensor 310. When the pressure measuring head 330 is inserted into the tulip contact, the pressure conducting block 320 abuts against the spring contact finger of the tulip contact, so that the pressure sensor 310 measures the contact pressure of the tulip contact.

The pressure measuring head 330 includes a connecting portion 331 and an inserting portion 332, the connecting portion 331 is detachably mounted on the connecting base 200, the inserting portion 332 is disposed at one end of the connecting portion 331, and the pressure conducting block 320 is disposed on the inserting portion 332.

The pressure measuring head 330 is provided with an insertion cavity 333 with an outward opening, the pressure conduction block 320 extends into the insertion cavity 333, and one end of the main body 100 is inserted into the insertion cavity 333, so that the pressure sensor 310 abuts against the pressure conduction block 320.

Operating handle 400 includes installation department 410 and handheld portion 420, and installation department 410 sets firmly on host computer 100, is provided with handheld portion 420 on the installation department 410, and handheld portion 420 is the steering wheel shape, accomplishes the plug action of pressure measuring head 330 through operating handle 400, makes the use of tester more convenient. The mounting portion 410 is cylindrical, a stop ring 411 is formed on an inner wall of one end of the mounting portion 410, the mounting portion 410 is sleeved on the main unit 100, and the stop ring 411 abuts against the positioning ring 210, so that the mounting and fixing of the operating handle 400 are facilitated.

As shown in fig. 2, 3, 5 and 6, the main body 100 includes a main body 110 and a housing 120, the main body 110 is in a cylindrical structure, the connecting seat 200 is sleeved in the main body 110, the pressure sensor 310 is installed at the front end of the main body 110, the housing 120 is in a sleeve shape, an inner wall of the housing 120 is processed with an inner thread, an outer wall of the rear end of the main body 110 is processed with an outer thread and is screwed with the housing 120, and the operating handle 400 is fixed on the housing 120.

Host computer 100 still includes display module 130 and circuit board 140, and display module 130 is installed in the rear end of main part 110, and circuit board 140 is installed in main part 110, and pressure sensor 310 and display module 130 link to each other with circuit board 140 respectively, and in this embodiment, display module 130 can purchase the current digital display screen in the market and install, shows the pressure numerical value of pressure sensor 310 test through display module 130, is convenient for know the user state of contact.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a contact pressure tester which characterized in that: including host computer, connecting seat and pressure measurement subassembly, the connecting seat set firmly in the host computer, pressure measurement subassembly includes pressure sensor, pressure conduction piece and pressure head, pressure sensor set up in the host computer, pressure conduction piece set up in on the pressure head, pressure head detachably install in on the connecting seat, and make pressure conduction piece and pressure sensor looks butt.

2. A stylus pressure tester as claimed in claim 1, wherein: the pressure measuring head comprises a connecting part and an inserting part, the connecting part is detachably arranged on the connecting seat, the inserting part is arranged at one end of the connecting part, and the pressure conduction block is arranged on the inserting part.

3. A stylus pressure tester as claimed in claim 2, wherein: the connecting seat is in a sleeve shape, an internal thread is processed on the inner wall of the connecting seat, an external thread is processed on the outer wall of the connecting part, and the connecting seat is in threaded connection with the connecting seat.

4. A stylus pressure tester as claimed in claim 2, wherein: the pressure measuring head is provided with an insertion cavity with an outward opening, the pressure conduction block extends into the insertion cavity, one end of the host is inserted into the insertion cavity, and the pressure sensor is connected with the pressure conduction block in an abutting mode.

5. A stylus pressure tester according to claim 1, wherein: still include operating handle, operating handle includes installation department and handheld portion, the installation department set firmly in on the host computer, be provided with on the installation department handheld portion, handheld portion is the steering wheel shape.

6. The contact pressure tester of claim 5, wherein: the outer wall of connecting seat is provided with the holding ring, the installation department is the tube-shape, and the inner wall of its one end is formed with the backstop ring, the installation department cover is located on the host computer, and make the backstop ring support lean on in on the holding ring.

7. The contact pressure tester of claim 5, wherein: the main unit comprises a main body which is of a columnar structure, the connecting seat is sleeved in the main body, and the pressure sensor is installed at the front end of the main body.

8. A stylus pressure tester according to claim 7, wherein: the host computer still includes the shell, the shell is the cover tube-shape, the inner wall processing of shell has the internal thread, the outer wall processing of main part rear end has the external screw thread, and with shell looks spiro union, operating handle is fixed in on the shell.

9. A stylus pressure tester according to claim 7, wherein: the host computer still includes display module and circuit board, display module install in the rear end of main part, the circuit board install in the main part, pressure sensor and display module respectively with the circuit board links to each other.