CN213185511U

CN213185511U - Communication line surge overvoltage protection device

Info

Publication number: CN213185511U
Application number: CN202022162337.6U
Authority: CN
Inventors: 吴宝清; 吴平
Original assignee: Anhui Chaoyuan Communication Technology Co ltd
Current assignee: Anhui Chaoyuan Communication Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-05-11
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a surge overvoltage protector technical field discloses a communication line surge overvoltage protector, including internally mounted electrical components's casing and the square groove of seting up along the back of casing, it has the lead screw to articulate between the upper and lower end inner wall of square groove, the fixed gear that has cup jointed of intermediate position in the lead screw outside, and two equal screw threads of tip of lead screw have cup jointed the movable block, the side of movable block extends to the notch department and the fixedly connected with clamp splice of square groove, one side inner wall department that the square groove corresponds the gear has seted up first groove of accomodating, first inboard movably of accomodating the groove is provided with the pull rod, the lump is cup jointed to the one end of pull rod, and the other end fixedly connected with inserted sheet of pull rod, inserted sheet and gear looks block. The two clamping blocks move oppositely through the rotation of the control screw rod, so that the transverse strips are clamped and fixed, the shell can be conveniently fixed on the transverse strips with different widths, and the situation that the fixing of the shell is influenced due to the fact that the mounting holes cannot be aligned is avoided.

Description

Communication line surge overvoltage protection device

Technical Field

The utility model relates to a surge overvoltage protector technical field specifically is a communication line surge overvoltage protector.

Background

The surge overvoltage protector is a lightning protector, and is used for providing safety protection for various electronic equipment, instruments and communication lines, when spike current or voltage is suddenly generated in an electric loop or a communication line due to external interference, the surge protector can conduct and shunt in a very short time, so that damage of surge to other equipment in the loop is avoided, and the surge overvoltage protector has overload and short-circuit protection functions and can be used for protecting overload and short circuit of the line or a motor.

However, the existing surge overvoltage protection device has certain limitations, and the specific performance is that the mounting and fixing effect of the housing is not good enough, and the housing is usually fixed on the cross bar of the mounting box by using bolts, so that when the mounting holes cannot be aligned, the mounting is inconvenient, and holes need to be punched on the cross bar again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a communication line surge overvoltage protector to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a communication line surge overvoltage protector, includes internally mounted has electrical components's casing and the square groove of seting up along the back of casing, it has the lead screw to articulate between the upper and lower end inner wall of square groove, the fixed gear that has cup jointed of intermediate position in the lead screw outside, and the equal screw thread of two tip of lead screw has cup jointed the movable block, the side of movable block extends to the notch department and the fixedly connected with clamp splice of square groove, one side inner wall department that the square groove corresponds the gear has seted up first groove of accomodating, first inboard movably of accomodating the groove is provided with the pull rod, the block head has been cup jointed to the one end of pull rod, and the other end fixedly connected with inserted sheet of pull rod, inserted sheet and gear looks block.

As a further aspect of the present invention: the pull rod is close to the position of inserted sheet and has cup jointed first spring, the both ends of first spring fixed connection respectively are in the outer wall of pull rod and the first inner wall of accomodating the groove.

As a further aspect of the present invention: the outer side of the shell is provided with a second containing groove corresponding to the block head, a second spring is sleeved at the position, close to the block head, of the pull rod, and two ends of the second spring are respectively connected with the outer wall of the block head and the inner wall of the second containing groove.

As a further aspect of the present invention: the upper end of the shell is embedded with a knob, and the end part of the knob is fixedly connected with the screw rod.

As a further aspect of the present invention: the screw threads on the two sides of the gear of the screw rod are opposite in spiral direction, and the two movable blocks are symmetrical about the gear.

As a further aspect of the present invention: one end of each of the two adjacent clamping blocks is provided with a tip which is inclined inwards.

Compared with the prior art, the beneficial effects of the utility model are that: make two clamp splices carry out the phase displacement through the rotation of control lead screw to this comes to press from both sides tightly fixedly to the horizontal bar, thereby can be conveniently be fixed in the casing on the horizontal bar of different width, avoided influencing the fixed of casing because of the unable alignment of mounting hole, and after fixing, it is spacing to carry out the block to the gear through utilizing the inserted sheet, can prevent that gear and lead screw from taking place to rotate because of receiving the influence of external force, and then avoided the not hard up of clamp splice effectively, guaranteed the fixed effect to the casing.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the back structure of the present invention;

fig. 3 is an enlarged view of a in fig. 2.

In the figure: 1. a housing; 2. a square groove; 3. a screw rod; 4. a knob; 5. a movable block; 6. a clamping block; 7. a gear; 8. a first receiving groove; 9. a second receiving groove; 10. a pull rod; 11. a block head; 12. inserting sheets; 13. a first spring; 14. a second spring.

Detailed Description

Please refer to fig. 1-3, in the embodiment of the present invention, a communication line surge overvoltage protection device, the housing 1 including internally mounted electrical components and the square groove 2 set up along the back of the housing 1, there is a lead screw 3 hinged between the upper and lower end inner walls of the square groove 2, the gear 7 is fixedly sleeved at the middle position outside the lead screw 3, and two end equal threads of the lead screw 3 are sleeved with a movable block 5, the side of the movable block 5 extends to the groove opening of the square groove 2 and is fixedly connected with a clamping block 6, the first groove 8 of accomodating has been set up at one side inner wall of the square groove 2 corresponding to the gear 7, the first inboard movably of accomodating the groove 8 is provided with a pull rod 10, the block head 11 is sleeved at one end of the pull rod 10, and the other end fixedly connected with an insert 12 of the pull rod 10, the insert 12.

In fig. 2 and 3: the part of the pull rod 10 close to the insert 12 is sleeved with a first spring 13, and two ends of the first spring 13 are respectively and fixedly connected to the outer wall of the pull rod 10 and the inner wall of the first accommodating groove 8.

By adopting the scheme, the first spring 13 can be used for pushing the pull rod 10 and the inserting piece 12 to move towards the direction of the gear 7 integrally until the inserting piece 12 is clamped with the gear 7, so that the gear 7 is further limited, and the gear 7 is prevented from loosening after the surge overvoltage protection device is installed.

In fig. 2 and 3: the outer side of the shell 1 is provided with a second accommodating groove 9 corresponding to the block head 11, the part of the pull rod 10 close to the block head 11 is sleeved with a second spring 14, and two ends of the second spring 14 are respectively connected with the outer wall of the block head 11 and the inner wall of the second accommodating groove 9.

By adopting the scheme, when a plurality of surge overvoltage protection devices are used in parallel, the opened second accommodating groove 9 can be used for accommodating the block head 11, so that two adjacent surge overvoltage protection devices can be tightly attached together, and when the surge overvoltage protection device is used alone, the second spring 14 can push the block head 11 out of the second accommodating groove 9 along the pull rod 10, so that an installer can pull the pull rod 10 outwards through the block head 11 to release the limit of the gear 7.

In fig. 1 and 2: the upper end of the shell 1 is embedded with a knob 4, and the end part of the knob 4 is fixedly connected with the screw rod 3.

Through adopting above-mentioned scheme to can drive lead screw 3 through rotating knob 4 and rotate, drive two movable blocks 5 with this and remove.

In fig. 1 and 2: the screw threads of the screw rod 3 on two sides of the gear 7 are opposite in spiral direction, and the two movable blocks 5 are symmetrical about the gear 7.

By adopting the scheme, the relative positions of the two movable blocks 5 can be adjusted by controlling the rotation of the screw rod 3, and then the relative positions of the two clamping blocks 6 are adjusted.

In fig. 1: the adjacent ends of the two clamping blocks 6 are provided with tips which are inclined inwards.

Through adopting above-mentioned scheme, so set up can so that clamp splice 6 centre gripping more firm to the fastness of surge overvoltage protection device installation has been strengthened.

The utility model discloses a theory of operation is: when the surge overvoltage protection device is to be installed, first, the back of the housing 1 is aligned with the cross bar of the installation box, and the cross bar is located between the two clamping blocks 6, then, the block head 11 and the pull rod 10 are integrally pulled outwards, and the screw rod 3 is driven to rotate by rotating the knob 4, so that the two movable blocks 5 and the clamping block 6 are integrally moved towards each other to clamp and fix the horizontal bar, thereby being convenient for fixing the shell 1 on the horizontal bar and being suitable for horizontal bars with different widths, avoiding the fixation of the shell 1 from being influenced because the mounting holes can not be aligned, and after the fixation, the gear 7 is clamped and limited by the inserting piece 12, therefore, the gear 7 and the screw rod 3 can be prevented from rotating under the influence of external force, the looseness of the clamping block 6 is effectively avoided, and the fixing effect on the shell 1 is ensured.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A communication line surge overvoltage protection device comprises a shell (1) internally provided with an electrical element and a square groove (2) arranged along the back of the shell (1), and is characterized in that a lead screw (3) is hinged between the inner walls of the upper end and the lower end of the square groove (2), a gear (7) is fixedly sleeved at the middle position of the outer side of the lead screw (3), movable blocks (5) are sleeved at two end parts of the lead screw (3) in a threaded manner, the side edge of each movable block (5) extends to the notch of the square groove (2) and is fixedly connected with a clamping block (6), a first accommodating groove (8) is arranged at the inner wall of one side of the square groove (2) corresponding to the gear (7), a pull rod (10) is movably arranged at the inner side of the first accommodating groove (8), a block head (11) is sleeved at one end of the pull rod (10), and an insertion piece (12) is fixedly connected with the other end of the pull rod (10), the inserting piece (12) is clamped with the gear (7).

2. A surge overvoltage protection device for communication lines according to claim 1, wherein a first spring (13) is sleeved on a portion of the pull rod (10) close to the insert (12), and two ends of the first spring (13) are respectively fixedly connected to an outer wall of the pull rod (10) and an inner wall of the first receiving groove (8).

3. A surge overvoltage protection device for communication lines according to claim 1, wherein the outer side of the housing (1) is provided with a second receiving groove (9) corresponding to the block head (11), a second spring (14) is sleeved on a portion of the pull rod (10) close to the block head (11), and two ends of the second spring (14) are respectively connected with the outer wall of the block head (11) and the inner wall of the second receiving groove (9).

4. A communication line surge overvoltage protection device according to claim 1, wherein a knob (4) is embedded in the upper end of the housing (1), and the end of the knob (4) is fixedly connected with the screw rod (3).

5. A surge overvoltage protection device for communication lines according to claim 1, wherein the threads of said screw (3) on both sides of the gear (7) are in opposite directions, and the two movable blocks (5) are symmetrical with respect to the gear (7).

6. A communication line surge overvoltage protection device according to claim 1, characterized in that the adjacent ends of two of said clamping blocks (6) are arranged with tips directed obliquely inwards.