CN217607075U

CN217607075U - Spring sheet type vibration-proof duplex pressing plate

Info

Publication number: CN217607075U
Application number: CN202221748019.0U
Authority: CN
Inventors: 孙晓兰; 吴煜珂
Original assignee: Chengdu Hujia Huatong Electric Appliance Co ltd
Current assignee: Chengdu Hujia Huatong Electric Appliance Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-10-18
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to a shell fragment formula antivibration pair clamp plate, including protective housing, connection piece, return circuit screw rod, go up guide cylinder and shell fragment, the protective housing includes sleeve and shell, two the sleeve is installed side by side in the shell, two the one-to-one of return circuit screw rod is pegged graft in the sleeve, connection piece left end and one return circuit screw rod swing joint, connection piece right-hand member and another the connection can be dismantled to the return circuit screw rod, two go up the guide cylinder cover and establish on the return circuit screw rod, upward be provided with the jack on the guide cylinder lateral wall, shell fragment one end is pegged graft in the jack, the shell fragment other end is provided with the opening, the opening blocks the return circuit screw rod, the shell fragment with the tip butt of connection piece. By utilizing the assembly structure of the upper guide cylinder matched with the elastic sheet and the elasticity of the elastic sheet, poor contact of a contact caused by accumulated errors in the group of size parts can be ensured, and the connection sheet can be always kept in good contact with the loop screw rod.

Description

Spring sheet type vibration-proof duplex pressing plate

Technical Field

The utility model relates to an electrical switch technical field especially relates to shell fragment formula antivibration pair clamp plate.

Background

The safe operation of the relay protection system is the most important safety guarantee of the power system, and the safe operation of the relay protection device and related accessories is particularly important. Because of the particularity of the relay protection equipment, a visible obvious disconnection point, namely a hard pressure plate, is required to be arranged on the tripping and closing circuit and the switching on and off of the protection function. The hard pressing plate is also called as a protection pressing plate, is a connecting piece of the protection device connected with external wiring, and realizes the input of equipment and quit the operation by the connection and disconnection of the electric connecting piece pressing plate. The operating personnel can conveniently and visually judge whether the protection function of the relay protection device is put into use and whether the trip circuit is smooth, thereby providing great convenience for maintenance and operation. The antitracking effect of this kind of mode of compressing tightly is not ideal, when each size precision of part cooperates unsatisfactorily, probably causes the bad condition of contact. Secondly, the conductive screw in the main loop of the existing duplex pressure plate in the market adopts an injection molding and rubber coating insert process, which is troublesome during injection molding, and more importantly, if the internal stress generated by screw coating during injection molding is not completely eliminated, the potential danger of cracking of the plastic coating part can exist for a long time, and the screw insert is arranged in the plastic connector of the pressure plate, after the cracking of the rubber coating plastic, the cracking part can not be easily found, and the electrical clearance between the main loop and the auxiliary loop can be too small, so that the two loops can be communicated.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a spring-type vibration-proof double-coupled pressure plate in view of the above problems.

The elastic sheet type anti-vibration duplex pressing plate comprises a protective shell, a connecting sheet, a loop screw rod, an upper guide cylinder and an elastic sheet, wherein the protective shell comprises a sleeve and a shell, the sleeve is arranged in the shell side by side, the loop screw rod is spliced in the sleeve in a one-to-one correspondence manner, the left end of the connecting sheet is movably connected with the loop screw rod, the right end of the connecting sheet is detachably connected with the loop screw rod, the upper guide cylinder is sleeved on the loop screw rod, a jack is arranged on the side wall of the upper guide cylinder, one end of the elastic sheet is spliced in the jack, the other end of the elastic sheet is provided with an opening, and the opening is clamped with the loop screw rod, and the elastic sheet is abutted to the end of the connecting sheet.

Preferably, the left end of the connecting sheet is provided with a mounting hole, one loop screw movably penetrates through the mounting hole, the right end of the connecting sheet is provided with a bayonet, and the bayonet is movably clamped with the other loop screw.

Preferably, the open end is upwardly tilted.

Preferably, the quantity of connection piece is two, two the connection piece parallel arrangement side by side is in go up the both ends of guide cylinder, two the middle part of connection piece is provided with revolves twists the switch.

Preferably, a loop auxiliary conductor is arranged in the shell, a spring base is arranged at the lower end of the loop screw rod, the upper end of the loop auxiliary conductor is abutted against the connecting sheet, and the lower end of the loop auxiliary conductor is abutted against the spring base.

Preferably, an insulating sleeve is arranged at the upper end of the loop screw.

Preferably, the spring base comprises a protective sleeve, a spring and a gasket, the protective sleeve is arranged at the lower end of the loop screw rod, the spring is arranged in the protective sleeve and is arranged on the loop screw rod in a sleeved mode, the gasket is connected with the upper end of the spring, and the lower end of the loop auxiliary conductor is abutted to the gasket.

The utility model discloses an useful part lies in: the assembly structure of guide cylinder cooperation shell fragment on utilizing to and the elasticity of shell fragment self, the contact that accumulated error in this group of size parts arouses is bad, can guarantee that connection piece and return circuit screw rod remain good contact throughout, runs into unexpected vibration, also can play the locking effect of antivibration.

Drawings

FIG. 1 is a perspective view of one embodiment of a spring plate type anti-vibration duplex pressing plate;

fig. 2 is an explosion schematic diagram of the spring sheet type anti-vibration duplex pressing plate.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 2, the elastic sheet type anti-vibration duplex pressing plate includes a protective housing 1, a connecting sheet 2, loop screws 3, upper guide cylinders 4 and elastic sheets 5, the protective housing 1 includes a sleeve 11 and a housing 12, the two sleeves 11 are installed in the housing 12 side by side, the two loop screws 3 are inserted in the sleeve 11 in a one-to-one correspondence manner, the left end of the connecting sheet 2 is movably connected with one loop screw 3, the right end of the connecting sheet 2 is detachably connected with the other loop screw 3, the two upper guide cylinders 4 are sleeved on the loop screws 3, jacks 41 are arranged on the side walls of the upper guide cylinders 4, one ends of the elastic sheets 5 are inserted in the jacks 41, openings 51 are arranged at the other ends of the elastic sheets 5, the loop screws 3 are clamped by the openings 51, and the elastic sheets 5 are abutted to the ends of the elastic sheets 2. Specifically, 1 plastic of protective housing is made, and loop screw 3 is pegged graft in sleeve 11, no longer links into an integrated entity through injection molding process between loop screw 3 and the protective housing 1, prevents that time from being of a specified duration, and sleeve 11 ftractures, causes the electric clearance undersize of major loop and auxiliary loop, arouses two return circuits to appear colluding the phenomenon. Two loop screws 3 are inserted in the sleeve 11, the left end of the connecting piece 2 is movably connected with one loop screw 3, the connecting piece 2 is rotated by taking the loop screw 3 as an axis, and when the right end of the connecting piece 2 is contacted with the other loop screw 3, the circuit loop communication is completed; otherwise, the circuit loop is disconnected. In order to make the connection piece 2 and the loop screw 3 contact well, the upper end of the loop screw 3 is sleeved with the upper guide cylinder 4, the side part of the upper guide cylinder 4 is provided with the jack 41, so that one end of the elastic sheet 5 can be conveniently inserted into the jack 41, and the other end of the elastic sheet 5 is provided with the opening 51, so that the loop screw 3 can be conveniently clamped. In this embodiment, the elastic sheet 5 is designed to be L-shaped, and after one end of the elastic sheet 5 is inserted into the insertion hole 41, the elastic sheet 5 can support the connecting piece 2 in the passage state against the abutting portion of the loop screw 3 by means of its own elastic force, specifically, in this embodiment, a nut is sleeved on the loop screw 3, and the connecting piece 2 is supported by the nut, in other embodiments, a convex portion can be further provided on the loop screw 3 to support the connecting piece 2, the shape of the convex portion is not specifically limited, as long as the convex portion can be matched with the elastic sheet 5 to clamp the connecting piece 2. Utilize shell fragment 5 can avoid connection piece 2 and return circuit screw rod 3 contact failure, solve current switch clamp plate size precision bad, when the equipment cooperation is unsatisfactory, connection piece 2 and the bad problem of return circuit screw rod 3 contact.

As shown in fig. 1 to 2, a mounting hole 21 is formed at the left end of the connecting piece 2, and one loop screw 3 movably penetrates through the mounting hole 21, it can be understood that the diameter of the mounting hole 21 is larger than that of the loop screw 3, so that the connecting piece 2 can conveniently rotate along with the loop screw 3 penetrating through the mounting hole 21. The right end of the connecting piece 2 is provided with a bayonet 22, the bayonet 22 is movably clamped with the other loop screw 3, and during passage, the contact area of the connecting piece 2 and the loop screw 3 is increased, so that poor contact is prevented.

As shown in fig. 1 to 2, the end of the opening 51 is raised upward, so that when the connecting piece 2 is changed from an open circuit state to a passage, the connecting piece 2 collides with the end of the opening 51, and the connecting piece 2 cannot be correctly inserted between the abutting portions of the spring 5 and the loop screw 3.

As shown in fig. 1 to 2, the number of the connecting pieces 2 is two, the two connecting pieces 2 are arranged at two ends of the upper guide cylinder 4 in parallel side by side, the middle parts of the two connecting pieces 2 are provided with the screwing switch 6, the two connecting pieces 2 can realize the duplex design purpose, and meanwhile, the connecting pieces 2 are synchronously rotated by using one screwing opening 6, so that the synchronous on-off design purpose is realized, the contact with an external device is avoided, the two connecting pieces 2 are independently opened and closed, and the operation is complicated.

As shown in fig. 1 to 2, a loop auxiliary conductor 7 is arranged in the housing 12, a spring base 31 is arranged at the lower end of the loop screw 3, the upper end of the loop auxiliary conductor 7 is abutted against the connecting sheet 2, and the lower end of the loop auxiliary conductor 7 is abutted against the spring base 31. Concretely, return circuit auxiliary conductor 7 is the metalwork, peg graft in shell 12, keep apart with return circuit screw rod 3 electricity through sleeve 11, return circuit auxiliary conductor 7 is cylindricly, set up the scarce groove on the barrel simultaneously, dodge the connector between shell 12 and the sleeve 11, return circuit auxiliary conductor 7 upper end and the lower 2 butt of a slice connection piece of height, lower extreme and spring base 31 butt, when making rather than the connection piece 2 motion of contact under the access state, return circuit auxiliary conductor 7 receives an ascending elastic force of spring base 31, can cooperate upper guide cylinder 4, press from both sides tight this connection piece 2, prevent that it from receiving the vibration pine and move.

As shown in fig. 1 to 2, an insulating sleeve 32 is disposed at the upper end of the loop screw 3, and the insulating sleeve 32 is screwed to the upper end of the loop screw 3 through a thread structure, so that the elastic sheet 5 can be limited by the upper guide tube 4, and the end of the connecting sheet 2 can be clamped by the elastic sheet 5 depending on the elastic force of the elastic sheet and the acting force applied by the insulating sleeve 32, thereby preventing the connecting sheet 2 from vibrating and loosening and having poor contact with the loop screw 3.

As shown in fig. 2, the spring base 31 includes a protection sleeve 311, a spring 312 and a washer 313, the protection sleeve 3 is sleeved on the lower end of the loop screw 3, the spring 312 is installed in the protection sleeve 311 and sleeved on the loop screw 3, the washer 313 is connected with the upper end of the spring 312, the lower end of the loop auxiliary conductor 7 is abutted to the washer 313, the protection sleeve 311 can be screwed on the lower end of the loop screw 3 through a thread structure, a gap exists between the protection sleeve 311 and the loop screw 3, so that the spring 312 is sleeved on the loop screw 3, the upper end of the spring 312 is connected to the washer 313, the washer 313 is abutted to the lower end of the loop auxiliary conductor 7, and the loop auxiliary conductor 7 can be driven to move up and down when the connecting sheet 2 is connected and disconnected.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the 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. Shell fragment formula antivibration pair clamp plate, its characterized in that: including the protective housing, the connection piece, the return circuit screw rod goes up guide cylinder and shell fragment, the protective housing includes sleeve and shell, two the sleeve is installed side by side in the shell, two return circuit screw rod one-to-one is pegged graft in the sleeve, connection piece left end and one return circuit screw rod swing joint, connection piece right-hand member and another the connection can be dismantled to the return circuit screw rod, two go up the guide cylinder cover and establish on the return circuit screw rod, go up and be provided with the jack on the guide cylinder lateral wall, shell fragment one end is pegged graft in the jack, the shell fragment other end is provided with the opening, the opening blocks the return circuit screw rod, the shell fragment with the tip butt of connection piece.

2. The reed-type anti-vibration duplex pressure plate according to claim 1, wherein: the left end of the connecting sheet is provided with a mounting hole, one loop screw rod movably penetrates through the mounting hole, the right end of the connecting sheet is provided with a bayonet, and the bayonet is movably clamped with the other loop screw rod.

3. The reed type anti-vibration duplex pressure plate according to claim 1, wherein: the opening end is tilted upward.

4. The reed type anti-vibration duplex pressure plate according to claim 2, wherein: the quantity of connection piece is two, two the connection piece parallel arrangement side by side goes up the both ends of guide tube, two the middle part of connection piece is provided with revolves twists the switch.

5. The reed type anti-vibration duplex pressure plate according to claim 4, wherein: the circuit screw rod is characterized in that a circuit auxiliary conductor is arranged in the shell, a spring base is arranged at the lower end of the circuit screw rod, the upper end of the circuit auxiliary conductor is abutted to the connecting piece, and the lower end of the circuit auxiliary conductor is abutted to the spring base.

6. The reed type anti-vibration duplex pressure plate according to claim 1, wherein: and an insulating sleeve is arranged at the upper end of the loop screw.

7. The reed type anti-vibration duplex pressure plate according to claim 5, wherein: the spring base comprises a protective sleeve, a spring and a gasket, the protective sleeve is arranged at the lower end of the loop screw rod, the spring is arranged in the protective sleeve and sleeved on the loop screw rod, the gasket is connected with the upper end of the spring, and the lower end of the loop auxiliary conductor is abutted to the gasket.