CN205320425U - Clamping mechanism - Google Patents

Abstract

The utility model relates to the field of clamping technology, and provides a clamping mechanism, including a frame. The frame includes a top frame edge and two side frame edges. The two side frame edges form openings, and a movable support, a push rod, a handle, and a connecting rod are arranged in the frame. One end of the tong arm is connected to the movable bracket in rotation, and the other end extends toward the opening. The two connecting rods are respectively connected to the two tong arms in rotation. The two tong arms form a clamping mouth. The bracket abuts, the other end abuts with the connecting rod, and the frame is provided with a tension spring, one end of the tension spring is connected with the movable support, and the other end is connected with the side frame. When in use, place the surge protector between the two pliers arms, hold the handle tightly by hand, and pass through the transmission of the handle, push rod, connecting rod, compression spring, extension spring, movable bracket and pliers arm, so that the pliers arm is clamped Therefore, quickly pulling out the surge protector from the power distribution box or communication cabinet is simple and labor-saving, and does not cause damage to the plug-in module and base of the surge protector.

Description

clamping mechanism

technical field

The utility model belongs to the field of clamping technology, in particular to a clamping mechanism.

Background technique

Surge protectors are often used to suppress surge voltage on circuits and to relieve overcurrent on circuits. Generally, for the convenience of installation and maintenance, the surge protector usually adopts a pluggable form. For example, the surge protector can be pluggably installed on the distribution box or the communication cabinet. However, in the use of the existing surge protector, there is still such a problem: the installation space of the distribution box or the communication cabinet is narrow, it is not convenient to pull out the surge protector from the distribution box or the communication cabinet, and it is usually necessary to A force of at least 35N can be used to pull out the surge protector, which is difficult to operate with general tools, and improper operation will damage the plug-in module and base of the surge protector, resulting in the need to replace the surge protector.

Utility model content

The purpose of the utility model is to provide a clamping mechanism, aiming at solving the problems of laborious operation and easy damage to the surge protector of the existing extraction tool.

In order to solve the above-mentioned technical problems, the utility model provides a clamping mechanism, which includes a frame, and the frame includes a top frame edge and two side frame edges formed by bending the two ends of the top frame edge toward the same side. Openings are formed between the free ends of the side frame sides, and movable brackets with two ends slidingly connected to the two side frame sides are provided in the frame, and the movable brackets are slidably inserted into the top frame side toward the opening. A push rod that slides in the direction of the push rod, one end of the push rod is connected with a handle, and the other end is rotatably connected with two connecting rods, the two sides of the push rod are respectively provided with pliers arms, and one end of the pliers arms rotates with the movable bracket Connected, the other end extends towards the opening, the two connecting rods are respectively connected to the two pincer arms in rotation, a jaw for clamping objects is formed between the free ends of the two pincer arms, and the push rod cover A compression spring is provided, one end of the compression spring abuts against the movable bracket, and the other end abuts against the connecting rod, the frame is provided with a tension spring, one end of the tension spring is connected with the movable bracket, and the other end Connect with the side frame edge.

Further, the free end of the side frame is bent toward the pliers arm to form an abutting bend for abutting against the pliers arm so that the pliers arm clamps an object.

Further, the number of the extension springs is set to two, and the two extension springs are respectively arranged on the outer sides of the two side frames.

Further, the number of the extension springs is set to two, and the two extension springs are respectively arranged on the inner sides of the two side frames.

Further, the two pliers arms are arranged symmetrically with respect to the push rod, and the two connecting rods are arranged symmetrically with respect to the push rod.

Further, the frame is U-shaped.

Further, the side frame is provided with a sliding groove extending along the top frame toward the opening, and the two ends of the sliding bracket are slidingly inserted into the sliding groove respectively.

Further, the two ends of the handle are slid into the sliding slot respectively.

Further, the free ends of the two tong arms are respectively provided with jackets for clamping objects.

Further, teeth for clamping objects are formed on the jacket.

The beneficial effects of the clamping mechanism provided by the utility model:

Above-mentioned clamping mechanism has adopted frame, movable support, handle, push rod, connecting rod, pliers arm, stage clip and extension spring. When clamping the object, by applying a force to the handle, the direction of the force is from the opening to the edge of the top frame. In this way, the handle will drive the push rod to slide toward the edge of the top frame, and the connecting rod connected with the push rod rotates along with the push rod. The edge of the top frame slides, and at the same time, the two connecting rods rotate around the connection point with the push rod and approach, the rotating connecting rod will drive the pliers arm, and the two pliers arms will also rotate around the connection point with the movable bracket, so that the jaw Shrink to clamp the object. During this process, when the push rod drives the connecting rod to slide toward the edge of the top frame, the connecting rod will press against the compression spring to compress the compression spring. The clip spring will exert an active force towards the top frame edge to the movable support, so that the movable support slides towards the top frame limit; The force of the opening to ensure that the movable bracket is in a balanced state when the clamp arm clamps the object, that is, the force of the frame, the movable bracket, the handle, the push rod, the connecting rod, the clamp arm, the compression spring and the tension spring The system is in a balanced state, which is conducive to the firm clamping of the object by the clamp arm. In addition, when the object is released, the force on the handle is removed, and the extension spring and compression spring will resume deformation. Under the action of the extension spring and compression spring, the handle, push rod, connecting rod and pliers arm return to the state before clamping , for the next clamping operation. Therefore, when the above-mentioned clamping mechanism is used to clamp the surge protector, the surge protector is placed between the two clamp arms, and the handle is grasped by hand to apply force to the handle, and the force passes through the handle, push After the power transmission of rods, connecting rods, compression springs, extension springs, movable brackets and clamp arms, the clamp arms clamp the surge protector, so that the surge protector can be quickly pulled out from the distribution box or communication cabinet, The operation is simple and labor-saving, and does not cause damage to the plug-in module and the base of the surge protector.

Description of drawings

Fig. 1 is a schematic structural view of a clamping mechanism provided by an embodiment of the present invention;

Fig. 2 is a side view of the clamping mechanism provided by the embodiment of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-2, it is a preferred embodiment provided by the utility model.

It should be noted that, when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. 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.

It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiting.

As shown in Figure 1, the clamping mechanism 10 provided by this embodiment includes a frame 11, and the frame 11 includes a top frame side 111 and two side frame sides 112 formed by bending the two ends of the top frame side 111 towards the same side. An opening 12 is formed between the free ends of the side frame edges 112, and the frame 11 is provided with movable brackets 13 that are slidably connected to both sides of the frame edges 112 respectively. The push rod 14 that slides up, one end of the push rod 14 is connected with a handle 15, and the other end is rotatably connected with two connecting rods 16, the two sides of the push rod 14 are respectively provided with pincer arms 17, and one end of the pincer arm 17 is rotationally connected with the movable bracket 13, The other end extends towards the opening 12, and the two connecting rods 16 are rotatably connected with the two pliers arms 17 respectively, a jaw 171 for clamping objects is formed between the free ends of the two pliers arms 17, and the push rod 14 is provided with a compression spring 18, One end of stage clip 18 abuts against movable support 13 , and the other end abuts against connecting rod 16 .

As shown in Figure 1, above-mentioned clamping mechanism 10 has adopted frame 11, movable support 13, handle 15, push rod 14, connecting rod 16, pliers arm 17, stage clip 18 and extension spring 19. When clamping the object, by applying a force to the handle 15, the direction of the force is from the opening 12 to the top frame edge 111, so that the handle 15 will drive the push rod 14 to slide toward the top frame edge 111, and is connected with the push rod 14 in rotation The connecting rod 16 slides towards the top frame edge 111 with the push rod 14, and at the same time, the two connecting rods 16 rotate around their connection points with the push rod 14 to approach, and the rotating connecting rod 16 will drive the pincer arm 17, and the two pincer arms 17 will also Rotate around its connecting point with the movable bracket 13, so that the jaw 171 shrinks to clamp the object. During this process, when the push rod 14 drives the connecting rod 16 to slide toward the edge 111 of the top frame, the connecting rod 16 will press against the compression spring 18 to compress the compression spring 18 . Stage clip 18 will exert an active force toward top frame limit 111 to movable support 13, and movable support 13 is slid toward top frame limit 111, simultaneously, because extension spring 19 is subjected to the pulling of movable support 13, it will move support 13 Apply an active force towards the opening 12 from the top frame edge 111 to ensure that the movable support 13 is in a balanced state when the pincer arm 17 clamps the object, that is, the frame 11, the movable support 13, the handle 15, the push rod 14 , connecting rod 16, pliers arm 17, stage clip 18 and extension spring 19 are in a balanced state, which is conducive to the firm clamping object of pliers arm 17. In addition, when the object is unclamped, the active force to the handle 15 is removed, and the extension spring 19 and the stage clip 18 will resume deformation. The clamp arm 17 returns to the state before clamping, so as to facilitate the next clamping operation. Therefore, when the above-mentioned clamping mechanism 10 is used to clamp the surge protector 20, the surge protector 20 is placed between the two clamp arms 17, and the handle 15 is applied to the handle 15 by gripping the handle 15 with a hand. After the active force passes through the power transmission of the handle 15, push rod 14, connecting rod 16, clip spring 18, extension spring 19, movable bracket 13 and pliers arm 17, the pliers arm 17 clamps the surge protector 20, thus quickly Pulling out the surge protector 20 from the power distribution box or the communication cabinet is simple and labor-saving, and does not cause damage to the plug-in module and the base of the surge protector 20 .

It should be noted that, in this embodiment, the rotational connection is preferably hinged.

In order to further make the two pliers arms 17 clamp the object smoothly, as shown in Figure 1, the free ends of the side frame edges 112 are bent toward the pliers arms 17 to form a space for abutting against the pliers arms 17 so that the pliers arms 17 clamp the object. Bending 1121 against the top.

As shown in FIG. 1 , in order for the extension springs 19 to exert sufficient force on the movable bracket 13 , the number of extension springs 19 is set to two, and the two extension springs 19 are respectively arranged outside the frame edges 112 on both sides. Simultaneously, the setting of double extension spring 19 has played the effect of double insurance again, like this, under the situation that certain extension spring 19 fails, another extension spring 19 can also function.

Of course, it is also possible that the two extension springs 19 are respectively arranged inside the frame sides 112 on both sides.

As shown in FIG. 1 , in order to make the structure of the clamping mechanism 10 more regular, the two pliers arms 17 are arranged symmetrically with respect to the push rod 14 , and the two connecting rods 16 are arranged symmetrically with respect to the push rod 14 . When the push rod 14 slides, the moments of the two pincer arms 17 and the two connecting rods 16 in the direction of the push rod 14 are equal, and like this, the clamping force of the two pincer arms 17 to the object is equal, which is beneficial to the clamping object.

In order to make the frame 11 more suitable for holding and using by human hands, the shape of the frame 11 is U-shaped. Of course, the shape of the frame 11 can also be arched or the like.

As shown in Figures 1 and 2, in order to facilitate the sliding of the movable bracket 13 on the frame 11, the side frame edge 112 is provided with a slide groove 1122 extending along the top frame edge 111 towards the direction of the opening 12, and the two ends of the movable bracket 13 Slidingly inserted into the sliding slots 1122 respectively.

When the clamping mechanism 10 is used to clamp the object, when the handle 15 is held by hand, in order to prevent the handle 15 from swinging, the two ends of the handle 15 are respectively slid into the slide slots 1122 .

When the two clamp arms 17 clamp the surge protector 20, in order to prevent the clamp arms 17 from damaging the surface of the surge protector 20, and at the same time further clamp the surge protector 20, the free ends of the two clamp arms 17 are respectively provided with Jacket 21 for clamping objects. Preferably, the jacket 21 is a rubber sleeve.

In order to further clamp the object, the clamping teeth 211 for clamping the object are formed on the jacket 21 .

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (10)

1. clamp mechanism, is characterized in that, comprises framework, and described framework comprises top edge and by described top frameThe both sides edge that the two ends on limit are bent to form towards the same side, forms opening between the free end on side frame limit described in two,In described framework, be provided with two ends respectively with the travel(l)ing rest that described in two, side frame limit is slidably connected, described travel(l)ing restSlide and be inserted with the push rod towards the square upward sliding of described opening in described top edge, described push rod one end is connected withHandle, the other end is rotatably connected to two connecting rods, and the both sides of described push rod are respectively equipped with tong arm, described tong arm oneEnd is rotationally connected with described travel(l)ing rest, and the other end extends towards described opening, and described in two, connecting rod is respectively with twoDescribed tong arm is rotationally connected, and is formed for the jaws of gripping object described in two between the free end of tong arm, described inPushing rod sleeve is provided with stage clip, described stage clip one end and described travel(l)ing rest butt, and the other end and described connecting rod butt,Described framework is provided with extension spring, and described extension spring one end is connected with described travel(l)ing rest, the other end and described side frame limitConnect.

2. clamp mechanism as claimed in claim 1, is characterized in that, the free end on described side frame limit is towards instituteState that tong arm is bent to form for supporting described tong arm so that described tong arm clamping article support bending.

3. clamp mechanism as claimed in claim 2, is characterized in that, the quantity of described extension spring is made as two,Described in two, the outside on side frame limit described in two is located at respectively in extension spring.

4. clamp mechanism as claimed in claim 2, is characterized in that, the quantity of described extension spring is made as two,Described in two, the inner side on side frame limit described in two is located at respectively in extension spring.

5. the clamp mechanism as described in claim 1～4 any one, is characterized in that, described in two tong arm aboutDescribed push rod is symmetrical arranged, and described in two, connecting rod is symmetrical arranged about described push rod.

6. the clamp mechanism as described in claim 1～4 any one, is characterized in that, the shape of described frameworkTake the shape of the letter U.

7. the clamp mechanism as described in claim 1～4 any one, is characterized in that, described side frame limit is offeredHave along described top edge towards the upwardly extending chute in the side of described opening, the two ends of described sliding support respectivelySliding inserting in described chute.

8. clamp mechanism as claimed in claim 7, is characterized in that, described handle two ends are sliding inserting in respectivelyIn described chute.

9. the clamp mechanism as described in claim 1～4 any one, is characterized in that, described in two tong arm fromBy being respectively equipped with the chuck for clamping article on end.

10. clamp mechanism as claimed in claim 9, is characterized in that, on described chuck, be formed with forThe clip tooth of clamping article.