CN211121120U

CN211121120U - Sliding block stop structure of displacement switch

Info

Publication number: CN211121120U
Application number: CN201921899089.4U
Authority: CN
Inventors: 陈卫权
Original assignee: Jiangmen Electronics Co ltd
Current assignee: Jiangmen Electronics Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-28
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a slide block stop structure of a displacement switch, wherein one end of a screw sleeve is provided with an installation end surface, the other end is provided with a base, and the base is provided with a stop end surface; be provided with guide way and mounting groove in the base, be provided with the sensor in the mounting groove, be provided with the slider in the swivel nut, the slider has the slider contact, and the slider is connected with the connecting rod that extends to outside the swivel nut, and the connecting rod overcoat is equipped with the gap eliminating spring, and gap eliminating spring one end is supported and is leaned on the swivel nut, and the other end is supported and is leaned on the snap ring, and when the slider contact was in initial condition, the snap ring did not contact with the swivel nut, when the slider contact moved to the base stop end face, the. The utility model discloses because the snap ring is great with the area of contact of installation terminal surface, both butt back stability is higher, is difficult for leading to the slider slope, finally makes the sensor be difficult for being damaged and accurate detecting signal, has advantages such as simple structure and sensor detection are reliable.

Description

Sliding block stop structure of displacement switch

Technical Field

The utility model relates to a displacement sensor specifically discloses a displacement switch's slider locking structure.

Background

Refer to fig. 1. The conventional displacement switch has a cylindrical screw sleeve 1, one end of which is provided with a thread 11 for mounting the displacement switch on a case, and the other end of which is provided with a base 2. Two guide grooves 21 are arranged in the base 2, mounting grooves 22 are respectively arranged above the two guide grooves 21, and a partition plate 23 is arranged between the two mounting grooves 22. The sensors 4 are mounted in the two mounting grooves 22, and the sensors 4 have detection heads 41. The screw sleeve 1 is internally provided with a slide block 3, the slide block 3 is provided with two contacts 30, and the two contacts 30 are respectively arranged in the two guide grooves 21 and are respectively contacted with the detection heads 41 of the two sensors 4. The sliding block 3 is connected with a connecting rod 31 extending out of the threaded sleeve 1, a gap eliminating spring 32 is sleeved outside the connecting rod 31, one end of the gap eliminating spring 32 abuts against the threaded sleeve 1, and the other end of the gap eliminating spring abuts against a clamping ring 33 close to the tail end of the connecting rod 31. The connecting rod 31 tail end is used for butt testee, and anti-backlash spring 32 is used for providing the pretightning force for connecting rod 31, eliminates the clearance between connecting rod 31 and the testee. The slider 3 is provided with a stop boss 34, when the slider contact 30 moves to the end surface 24 of the base 2, the stop boss 34 abuts against the end surface 231 of the partition 23, and the slider contact 30 is prevented from penetrating out of the end surface 23 of the base to damage other components. The working principle of the displacement switch is as follows: connecting rod 31 butt testee, when the testee removed, promote connecting rod 31 and remove, connecting rod 31 promotes slider 3 and removes, moves the first 41 positions of detection of sensor 4 when slider contact 30, will detect first 41 compressions, and sensor 4 sends the warning signal of telecommunication. The sensor 4 is a precise device, and the compression amount of the detection head 41 needs to be controlled precisely, so that the sensor is damaged when the compression amount is too large, and a detection signal cannot be sent when the compression amount is too small. In the prior art, because the width of the end face 231 of the partition plate 23 is small, and the flatness of the end face 231 of the partition plate 23 is difficult to control due to the limitation of the machining process, the stop boss 34 is easy to roll after abutting against the end face 231 of the partition plate, which may cause the compression amount of the detection head 41 of the sensor 4 on one side to become small, and the compression amount of the detection head 41 of the sensor 4 on the other side to become large, and finally cause the sensor 4 to be damaged or fail to accurately send out a detection signal.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a stopper structure of a displacement switch slider having a simple structure and high reliability, in view of the problems of the prior art.

In order to solve the prior art problem, the utility model discloses a slide block stop structure of a displacement switch, which is provided with a screw sleeve, wherein one end of the screw sleeve is a mounting end and is provided with a mounting end surface, the other end of the screw sleeve is provided with a cavity, a base is arranged in the cavity, and the base is provided with a stop end surface; two guide grooves are formed in the base, mounting grooves are formed above the two guide grooves respectively, sensors are arranged in the mounting grooves and provided with detection heads, a sliding block is further arranged in the cavity of the screw sleeve and provided with two sliding block contacts, and the two sliding block contacts are arranged in the two guide grooves respectively; the sliding block is connected with a connecting rod extending out of the threaded sleeve, a gap eliminating spring is sleeved outside the connecting rod, one end of the gap eliminating spring is abutted against the threaded sleeve, and the other end of the gap eliminating spring is abutted against a clamping ring close to the tail end of the connecting rod; when the sliding block contact is in an initial state, the clamping ring is not in contact with the threaded sleeve, and when the sliding block contact moves to the stopping end face of the base, the clamping ring on the connecting rod abuts against the mounting end face of the threaded sleeve.

The utility model has the advantages that: the utility model discloses utilize the snap ring to support and block the mode that the slider contact moved forward on the swivel nut installation terminal surface and carry out the locking to the slider. Because the machining precision of mounting terminal surface is higher, the plane degree is controlled easily, and the snap ring is great with mounting terminal surface's area of contact, and both butts back stability is higher, is difficult for leading to the slider slope, finally makes the sensor be difficult for being damaged and accurate send detected signal, the utility model has the advantages of simple structure and sensor detect reliably.

Drawings

Fig. 1 is a schematic structural diagram of a conventional displacement switch.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of a section a-a in fig. 2.

FIG. 4 is a second schematic structural view of the section A-A in FIG. 2.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 2. The utility model discloses a displacement switch has columniform

swivel nut

1, and 1 one end of swivel nut has mounting end face 15 for the installation end, and the installation end face of cylinder is equipped with the screw thread 11 of installing displacement switch on quick-witted case, is provided with first counter bore 12 in the mounting end face 15, is provided with second counter bore 13 in the first counter bore 12, is equipped with cavity 14 in the 1 other end of swivel nut, installs base 2 in the cavity 14, and base 2 has locking terminal surface 24. Two guide grooves 21 are arranged in the base 2, mounting grooves 22 are respectively arranged above the two guide grooves 21, and a partition plate 23 is arranged between the two mounting grooves 22. The sensors 4 are mounted in the two mounting grooves 22, and the sensors 4 have detection heads 41. The screw sleeve 1 is also provided with a slide block 3 in the cavity 14, the slide block 3 is provided with two slide block contacts 30, and the two slide block contacts 30 are respectively arranged in the two guide grooves 21 and are respectively contacted with the detection heads 41 of the two sensors 4. The sliding block 3 is connected with a connecting rod 31 extending out of the threaded sleeve 1, a gap eliminating spring 32 is sleeved outside the connecting rod 31, one end of the gap eliminating spring 32 abuts against the second counter bore 13 of the threaded sleeve 1, and the other end of the gap eliminating spring abuts against a clamping ring 33 close to the tail end of the connecting rod 31. The connecting rod 31 tail end is used for butt testee, and anti-backlash spring 32 is used for providing the pretightning force for connecting rod 31, eliminates the clearance between connecting rod 31 and the testee.

The working principle of the displacement switch is as follows: connecting rod 31 butt testee, when the testee removed, promote connecting rod 31 and remove, connecting rod 31 promotes slider 3 and removes, moves the first 41 positions of detection of sensor 4 when slider contact 30, will detect first 41 compressions, and sensor 4 sends the warning signal of telecommunication.

Refer to fig. 3. When the slider contact 30 is in the initial state, i.e. the anti-backlash spring 32 is not compressed or slightly compressed, so that the connecting rod 31 is pressed against the object to be measured, the snap ring 33 on the connecting rod 31 is not in contact with the threaded sleeve 1. Referring to fig. 4, when the slider contact 30 moves to the base stop end surface 24, the snap ring 33 on the connecting rod 31 abuts against the mounting end surface 15 of the threaded sleeve 1 or the first counterbore 12, blocking the slider contact 30 from moving forward.

The utility model discloses utilize snap ring 33 to support and block the mode that slider contact 30 moved forward and stop slider 3 on swivel nut 1 mounting end face 15 or first counter bore 12. Because the machining precision of mounting end face 15 or first counter bore 12 is higher, the plane degree is controlled easily, and the area of contact of snap ring 33 and mounting end face 15 or first counter bore 12 is great, and stability is higher behind both butts, is difficult for leading to the slope of slider 3, finally makes sensor 4 be difficult for being damaged and accurately send the detected signal, has simple structure, and sensor 4 detects advantages such as reliable.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The sliding block stopping structure of the displacement switch is provided with a threaded sleeve, one end of the threaded sleeve is an installation end and is provided with an installation end surface, the other end of the threaded sleeve is provided with a cavity, a base is arranged in the cavity, and the base is provided with a stopping end surface; two guide grooves are formed in the base, mounting grooves are formed above the two guide grooves respectively, sensors are arranged in the mounting grooves and provided with detection heads, a sliding block is further arranged in the cavity of the screw sleeve and provided with two sliding block contacts, and the two sliding block contacts are arranged in the two guide grooves respectively; the sliding block is connected with a connecting rod extending out of the threaded sleeve, a gap eliminating spring is sleeved outside the connecting rod, one end of the gap eliminating spring is abutted against the threaded sleeve, and the other end of the gap eliminating spring is abutted against a clamping ring close to the tail end of the connecting rod; the method is characterized in that: when the sliding block contact is in an initial state, the clamping ring is not in contact with the threaded sleeve, and when the sliding block contact moves to the stopping end face of the base, the clamping ring on the connecting rod abuts against the mounting end face of the threaded sleeve.

2. The slider stop structure of a displacement switch according to claim 1, wherein: the thread insert mounting end face is provided with a first counter bore, and the clamping ring is abutted to the first counter bore.

3. The slider stop structure of a displacement switch according to claim 1, wherein: and a second counter bore is formed in the mounting end face of the threaded sleeve, one end of the anti-backlash spring is abutted in the second counter bore, and the other end of the anti-backlash spring is abutted on a clamping ring close to the tail end of the connecting rod.