CN217953749U

CN217953749U - Split type bolt pretightning force sensor

Info

Publication number: CN217953749U
Application number: CN202221425438.0U
Authority: CN
Inventors: 刘磊; 刘双文; 盛云峰; 李壮; 姚嘉骏
Original assignee: Jiaxing Broadsens Technology Co ltd
Current assignee: Jiaxing Broadsens Technology Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-12-02
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a split type bolt pretightning force sensor, it includes the shell, the upper cover has been cup jointed on the shell, the bottom of shell is provided with first base, be provided with first PCB board on the first base, install battery and second PCB board on the first PCB board, first through-hole has been seted up on the first base, can dismantle in the first through-hole and be connected with the second base, the second through-hole has been seted up in the second base, the roof of second through-hole is pegged graft and is had the probe, the top of probe is connected in the bottom of first PCB board. The utility model discloses be convenient for change the probe.

Description

Split type bolt pretightening force sensor

Technical Field

The utility model belongs to the technical field of the technique of bolt pretightning force sensor and specifically relates to a split type bolt pretightning force sensor is related to.

Background

At present, when bolts are used as fasteners of key parts of equipment, particularly industrial equipment with high safety requirements such as aerospace, automobiles, ships, special equipment and the like, the axial stress of the bolts can be directly and accurately monitored and controlled to ensure the working safety and reliability of the bolts.

The bolt pretension force sensor in the related art generally comprises an upper cover, a shell, a PCB (printed circuit board), a probe and other components.

However, the related art probe is inconvenient to disassemble, and thus, the probe is inconvenient to replace.

SUMMERY OF THE UTILITY MODEL

The application provides a split type bolt pretightning force sensor is convenient for change the probe.

The application provides a pair of split type bolt pretightning force sensor adopts following technical scheme:

the utility model provides a split type bolt pretightning force sensor, includes the shell, the upper cover has been cup jointed on the shell, the bottom of shell is provided with first base, be provided with first PCB board on the first base, install battery and second PCB board on the first PCB board, first through-hole has been seted up on the first base, can dismantle in the first through-hole and be connected with the second base, the second through-hole has been seted up in the second base, the roof of second through-hole is pegged graft and is had the probe, the top of probe is connected in the bottom of first PCB board.

Through adopting above-mentioned technical scheme, when needs are dismantled the probe, pull down the second base earlier, then take out the probe alright to be convenient for dismantle the probe, therefore be convenient for change the probe.

Preferably, the second base is connected to a sidewall of the first through hole by a screw.

Through adopting above-mentioned technical scheme, be convenient for carry out the dismouting to the second base.

Preferably, a sinking groove is formed in the top wall of the second through hole, and the probe is inserted into the sinking groove.

By adopting the technical scheme, the probe is convenient to install and position through the arranged sinking groove.

Preferably, a mounting groove is formed in the top of the first base, a magnet is mounted in the mounting groove, and the first base is connected with the shell through the magnet.

Through adopting above-mentioned technical scheme, through the magnet that sets up, be convenient for make first base and shell be connected.

Preferably, a sealing groove is formed in the top of the shell, and a first sealing ring is installed in the sealing groove.

Through adopting above-mentioned technical scheme, through the first sealing washer that sets up, can improve the leakproofness of upper cover and shell junction.

Preferably, a groove is formed in the bottom of the first base, a fixing ring is arranged in the groove, a fixing mechanism for fixing the second base is mounted on the fixing ring, the fixing mechanism comprises a chute formed in the inner circumferential surface of the fixing ring and a limiting block connected to the chute in a sliding manner, and a limiting groove for allowing the limiting block to slide is formed in the outer side wall of the second base; one end of the limiting block is provided with an inclined plane, the other end of the limiting block is fixedly connected with a guide rod, a horizontal groove is formed in the fixing ring, and the guide rod is connected to the horizontal groove in a sliding mode; the guide rod is sleeved with a spring, one end of the spring is fixedly connected to one end, away from the limiting groove, of the limiting block, and the other end of the spring is fixedly connected to the inner wall of one end of the sliding groove; and a pushing piece used for separating the limiting block from the limiting groove is arranged on the side wall of the sliding groove.

By adopting the technical scheme, when the second base needs to be installed, the second base is moved to be inserted into the first through hole, the second base drives the limiting block to move in the direction away from the limiting groove under the action of the inclined surface, the limiting block moves to press the spring, and the spring is in a compressed state; when the second base moves to enable the limiting block to be aligned with the limiting groove, the limiting block is inserted into the limiting groove under the action of the spring, and therefore the second base can be installed; when the second base needs to be disassembled, the limiting block is separated from the limiting groove through the pushing piece, and then the second base is taken down.

Preferably, a strip-shaped hole is formed in the bottom of the sliding groove, the pushing piece comprises a pushing block connected to the strip-shaped hole in a sliding mode, the pushing block is fixedly connected to the bottom of the limiting block, a magnetic block is fixedly connected to one side, away from the limiting groove, of the strip-shaped hole, and the pushing block and the magnetic block are attracted.

By adopting the technical scheme, the limiting block is conveniently separated from the limiting groove by the arranged pushing block; through the magnetic path that sets up, after stopper and spacing groove separation, be convenient for fix the stopper to be convenient for take off the second base.

Preferably, a second sealing ring is arranged on the outer side wall of the second base.

Through adopting above-mentioned technical scheme, through the second sealing washer that sets up, can reduce the possibility that rivers flowed into in the sensor.

In summary, the present application has the following beneficial effects:

1. when the probe needs to be disassembled, the second base is disassembled, and then the probe is taken out, so that the probe is convenient to disassemble, and the probe is convenient to replace;

2. when the second base needs to be installed, the second base is moved to be inserted into the first through hole, the second base drives the limiting block to move in the direction away from the limiting groove under the action of the inclined surface, the limiting block moves to press the spring, and the spring is in a compressed state; when the second base moves to enable the limiting block to be aligned with the limiting groove, the limiting block is inserted into the limiting groove under the action of the spring, and therefore the second base can be installed; when the second base needs to be disassembled, the limiting block is separated from the limiting groove through the pushing piece, and then the second base is taken down;

3. the limiting block is convenient to separate from the limiting groove through the arranged pushing block; through the magnetic path that sets up, after stopper and spacing groove separation, be convenient for fix the stopper to be convenient for take off the second base.

Drawings

FIG. 1 is an exploded view of the first embodiment;

FIG. 2 is a sectional view of the first embodiment;

FIG. 3 is a partial cross-sectional view of a cam fixing mechanism according to a second embodiment.

Description of reference numerals: 1. a housing; 11. a sealing groove; 12. a first seal ring; 2. an upper cover; 3. a first base; 31. a first PCB board; 32. a battery; 33. a second PCB board; 34. a first through hole; 35. mounting grooves; 36. a magnet; 37. a groove; 4. a second base; 41. a second through hole; 42. a probe; 43. sinking a groove; 44. a limiting groove; 5. a fixing ring; 51. a chute; 52. a strip-shaped hole; 53. a horizontal groove; 6. a fixing mechanism; 61. a limiting block; 62. a bevel; 63. a guide bar; 64. a spring; 7. a pusher member; 71. pushing a block; 72. a magnetic block; 8. and a second seal ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that, as used in the following description, the terms "front," "rear," "left," "right," "upper," "lower," "bottom" and "top" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example one

The utility model discloses a split type bolt pretightning force sensor, as shown in fig. 1 and fig. 2, including shell 1, upper cover 2 has been cup jointed on the shell 1, upper cover 2 and the bolt joint of shell 1, upper cover 2 is the cylindricality, first base 3 is installed to the bottom of shell 1, bolt joint has first PCB board 31 on the first base 3, install battery 32 and second PCB board 33 on the first PCB board 31, first through-hole 34 has been seted up on the first base 3, first through-hole 34 female connection has second base 4, second through-hole 41 has been seted up in the second base 4, the roof of second through-hole 41 is provided with probe 42, the heavy groove 43 has been seted up to the roof of second through-hole 41, probe 42 pegs graft in heavy groove 43, probe 42's top butt is in first PCB board 31's bottom. When the probe 42 needs to be disassembled, the second pedestal 4 is disassembled first, and then the probe 42 is taken out, so that the probe 42 is convenient to disassemble, and the probe 42 is convenient to replace.

As shown in fig. 1 and fig. 2, a mounting groove 35 is formed at the top of the first base 3, a magnet 36 is mounted in the mounting groove 35, the magnet 36 is annular, the magnet 36 and the first base 3 have the same axis, and the first base 3 is connected to the housing 1 through the magnet 36. The connection of the first base 3 to the housing 1 is facilitated by the provision of the magnet 36.

As shown in fig. 1 and 2, a sealing groove 11 is formed in the top of the housing 1, the sealing groove 11 extends vertically and has the same axis as the housing 1, and an annular first sealing ring 12 is installed in the sealing groove 11. The first seal ring 12 can improve the sealing property at the joint between the upper cover 2 and the housing 1.

Example two

A split type bolt pretightening force sensor, as shown in FIG. 3, is mainly different from the first embodiment in that: the bottom of first base 3 is seted up flutedly 37, and the solid fixed ring 5 of having bolted connection in the flutedly 37, and solid fixed ring 5 is last to be installed two sets of fixed establishment 6 that are used for fixed second base 4.

As shown in fig. 3, each set of fixing mechanisms 6 includes a sliding groove 51 formed in the inner circumferential surface of the fixing ring 5 and a limiting block 61 connected to the sliding groove 51 in a sliding manner along the radial direction of the fixing ring 5, the outer side wall of the second base 4 is provided with a limiting groove 44 for the limiting block 61 to slide, and the limiting groove 44 is horizontally arranged; the bottom of one end of the limiting block 61 close to the limiting groove 44 is provided with a slope 62, the other end is fixedly connected with a guide rod 63, the guide rod 63 is horizontally arranged, a horizontal groove 53 is formed in the fixing ring 5, and the guide rod 63 is connected to the horizontal groove 53 in a sliding manner along the radial direction of the fixing ring 5; a spring 64 is sleeved on the guide rod 63, the spring 64 is arranged along the radial direction of the fixing ring 5, one end of the spring 64 is fixedly connected to one end of the limiting block 61 far away from the limiting groove 44, and the other end of the spring 64 is fixedly connected to the inner wall of one end of the sliding groove 51; a pushing piece 7 for separating the limiting block 61 from the limiting groove 44 is mounted on the side wall of the sliding groove 51; the outer side wall of the second base 4 is provided with a second sealing ring 8. When the second base 4 needs to be installed, the second base 4 is inserted into the first through hole 34 by moving the second base 4, at this time, the second base 4 drives the limiting block 61 to move in a direction away from the limiting groove 44 under the action of the inclined surface 62, the limiting block 61 moves to press the spring 64, and at this time, the spring 64 is in a compressed state; when the second base 4 moves to the position that the limiting block 61 is aligned with the limiting groove 44, the limiting block 61 is inserted into the limiting groove 44 under the action of the spring 64, so that the second base 4 can be installed; when the second base 4 needs to be disassembled, the pushing member 7 separates the limiting block 61 from the limiting groove 44, and then the second base 4 is taken down.

As shown in fig. 3, a strip-shaped hole 52 is formed at the bottom of the sliding slot 51, the pushing member 7 includes a pushing block 71 slidably connected to the strip-shaped hole 52 along the radial direction of the fixing ring 5, the top of the pushing block 71 is fixedly connected to the bottom of the limiting block 61, the bottom of the pushing block 71 protrudes out of the bottom of the fixing ring 5, a magnetic block 72 is fixedly connected to one side of the strip-shaped hole 52 away from the limiting groove 44, and the pushing block 71 is attracted to the magnetic block 72. The limiting block 61 is conveniently separated from the limiting groove 44 through the arranged pushing block 71; through the magnetic block 72, after the limiting block 61 is separated from the limiting groove 44, the limiting block 61 is convenient to fix, so that the second base 4 is convenient to take down.

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 split type bolt pretightning force sensor, includes shell (1), upper cover (2), its characterized in that have cup jointed on shell (1): the bottom of shell (1) is provided with first base (3), be provided with first PCB board (31) on first base (3), install battery (32) and second PCB board (33) on first PCB board (31), first through-hole (34) have been seted up on first base (3), can dismantle in first through-hole (34) and be connected with second base (4), second through-hole (41) have been seted up in second base (4), the roof of second through-hole (41) is pegged graft and is had probe (42), the top of probe (42) is connected in the bottom of first PCB board (31).

2. The split bolt pretension sensor according to claim 1, wherein: the second base (4) is connected to the side wall of the first through hole (34) through threads.

3. The split bolt pretension sensor according to claim 1, wherein: the top wall of the second through hole (41) is provided with a sinking groove (43), and the probe (42) is inserted into the sinking groove (43).

4. The split bolt pretension sensor according to claim 1, wherein: mounting groove (35) have been seted up at the top of first base (3), install magnet (36) in mounting groove (35), first base (3) are connected with shell (1) through magnet (36).

5. The split bolt pretension sensor according to claim 1, wherein: a sealing groove (11) is formed in the top of the shell (1), and a first sealing ring (12) is installed in the sealing groove (11).

6. The split bolt pretension sensor according to claim 1, wherein: a groove (37) is formed in the bottom of the first base (3), a fixing ring (5) is arranged in the groove (37), a fixing mechanism (6) for fixing the second base (4) is installed on the fixing ring (5), the fixing mechanism (6) comprises a sliding groove (51) formed in the inner circumferential surface of the fixing ring (5) and a limiting block (61) connected to the sliding groove (51) in a sliding manner, and a limiting groove (44) for allowing the limiting block (61) to slide is formed in the outer side wall of the second base (4); an inclined plane (62) is arranged at one end of the limiting block (61), a guide rod (63) is fixedly connected to the other end of the limiting block, a horizontal groove (53) is formed in the fixing ring (5), and the guide rod (63) is connected to the horizontal groove (53) in a sliding mode; a spring (64) is sleeved on the guide rod (63), one end of the spring (64) is fixedly connected to one end, away from the limiting groove (44), of the limiting block (61), and the other end of the spring is fixedly connected to the inner wall of one end of the sliding groove (51); and a pushing piece (7) used for separating the limiting block (61) from the limiting groove (44) is arranged on the side wall of the sliding groove (51).

7. The split bolt pretension sensor according to claim 6, wherein: the bottom of the sliding groove (51) is provided with a strip-shaped hole (52), the pushing piece (7) comprises a pushing block (71) connected to the strip-shaped hole (52) in a sliding mode, the pushing block (71) is fixedly connected to the bottom of the limiting block (61), one side, away from the limiting groove (44), of the strip-shaped hole (52) is fixedly connected with a magnetic block (72), and the pushing block (71) and the magnetic block (72) are attracted.

8. The split bolt pretension sensor according to claim 6, wherein: and a second sealing ring (8) is arranged on the outer side wall of the second base (4).