CN216942398U - Push clamp - Google Patents

Abstract

The utility model provides a clamp pushing device which comprises a shell, a clamp storage tunnel, a grab handle, a force transmission part, a clamp pushing block and a motion limiting part, wherein the grab handle is arranged on the shell; the clip storage tunnel is internally provided with clips; a grab handle rotating shaft is fixedly arranged on the shell; the grab handle can center on grab handle pivot pivoted lever, when the stress point of grab handle received thrust, power transmission portion converted thrust into with the different middle thrust of thrust direction, promoted push away the clamp splice remove and support and lean on motion restriction portion with middle thrust angle first restriction face to the moving direction restriction that will push away the clamp splice is to the extending direction in parallel storage clamp tunnel, thereby promotes the clip and pops out along extending direction.

Description

Push clamp

Technical Field

The utility model relates to a clip pushing device used in the field of office stationery.

Background

The clip pusher contains a plurality of clips, and can push out the clips one by a user's pressing force to continuously bind documents or cards or the like.

CN1099969C discloses a multipurpose automatic clip applier in which a main body is constituted by a base plate and a cover body opposed to each other, and a clip pushing button is slidably provided back and forth. After inserting a proper paper into the insertion hole of the front end of the main body, the finger pressing part of the push button is pushed by the thumb to lower the front part of the push button which is inclined upwards, and the push stop part of the front end contacts with the bending part of the clip positioned in front of the front part to advance the clip.

A clip pusher which is brought into contact with a rearmost clip of a series of clips accommodated in the body to push the series of clips forward and applies a force to move the series of clips constantly is slidably attached to the inside of the body in the front-rear direction, a folded-back portion of a coil spring is formed at a rear portion of the clip pusher, both ends of the coil spring are hooked on a hooking protrusion formed on the push button and a hooking protrusion formed at a front portion of the clip pusher, the coil spring is folded back and bent in a U-shape at the folded-back portion of the coil spring, and the clip pusher constantly pushes the clips in the body toward the expanding spring by the force of the expanding coil spring.

In the structure of this patent document, a user directly pushes a push button for pushing the clip, and at the same time, the pushing force of the user needs to overcome the elastic force of a coil spring pulling the push button, so that the user needs to exert a large force to push the clip when operating. Meanwhile, the hand of the user needs to be operated towards the pushing-out direction of the clamp, so that the hand of the user is interfered by the paper to be clamped, and the risk of damaging the paper or damaging the hand of the user by the paper exists when the user applies improper force.

CN2808574Y discloses another paper clip, wherein a stack of documents to be clipped is placed at the exit of the paper clip slide way, the handle is pressed by hand, the rotary push rod under the pressing handle pushes the connecting rod and the convex slide block under the pressure of the pressing handle, the convex slide block advances along the slide way, when the document is advanced to the predetermined position of the paper clip, the paper clip advances together with the paper clip, when the protruding shoulders at the two sides of the fishtail fork at the front end of the paper clip contact the Y-shaped reed, the paper clip will expand with the propelling force of the convex slide block, and meanwhile, the paper clip will press the Y-shaped reed with its own elasticity, and as the convex slide block continues to advance, the paper clip will disengage the Y-shaped reed and return to the tight state by its own elastic contractive force, thus, the documents are clipped tightly.

However, in the paper gripper described in this patent document, the channel for storing the clips is angled with respect to the clip outlet, and there is a risk that the clips having a non-rounded shape are caught by the curved channel, which results in a high failure rate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to improve a push clamp structure in a push clamp device, and provides the push clamp device, which is convenient for a user to operate and reduces the failure rate caused by the push clamp structure.

The utility model relates to a clamp pushing device, which comprises a shell, a clamp storage tunnel, a grab handle, a force transmission part, a clamp pushing block and a motion limiting part, wherein the clamp storage tunnel is arranged in the shell; the clip storage tunnel is suitable for accommodating one or more clips; a grab handle rotating shaft is fixedly arranged on the shell; the grab handle is a lever which can rotate around the rotating shaft of the grab handle, and the force transmission part connects the grab handle and the push clamping block to make them linked; the force transmission part connects the grab handle and the pushing and clamping block, when the force bearing point of the grab handle is pushed, the force transmission part converts the pushing force into a middle pushing force different from the pushing force direction, the pushing and clamping block is pushed to move and abut against a first limiting surface of the movement limiting part, the first limiting surface is parallel to the storage and clamping tunnel, so that the movement direction of the pushing and clamping block is limited to be parallel to the extension direction of the storage and clamping tunnel, and the clamp accommodated in the storage and clamping tunnel is pushed to advance and pop up along the extension direction.

Due to the arrangement, the clamp pushing device can prevent a user from directly pushing the clamp towards the direction of paper during operation, and meanwhile, the clamp can always move along the direction parallel to the outlet, so that the clamp is prevented from being blocked.

Preferably, an angle between the pushing force and the extending direction is greater than 90 degrees, and an angle between the intermediate pushing force and the extending direction is less than 90 degrees. This enables the user to operate in a direction away from the sheet, avoiding interference with the sheet to be held.

Preferably, the force transmission part comprises a push clamping block rotating shaft and a connecting rod; the push clamping block is rotatably connected with the connecting rod through the push clamping block rotating shaft. The force transmission part comprises a connecting rod connecting shaft parallel to the handle rotating shaft; the connecting rod is rotatably connected with the grab handle through the connecting rod connecting shaft, and the connecting rod connecting shaft is closer to the rotating shaft of the grab handle than the stress point. Therefore, the force transmission part is formed into a labor-saving lever, and a user can push the clamp with small force.

Preferably, the movement restricting portion further includes a second restricting surface parallel to the first restricting surface; the push clamping block is in a wedge shape gradually enlarged in the extending direction and comprises a first contact surface and a second contact surface which are angled, the first contact surface can be in contact with the first limiting surface, and the second contact surface can be in contact with the second limiting surface; when the pushing and clamping block is pushed by the middle of the connecting rod to move along the extending direction, the first contact surface is in contact with the first limiting surface, at least one part of the pushing and clamping block enters the clip storage tunnel and abuts against the clip, when the pushing and clamping block is not pushed by the middle of the connecting rod or is pushed by the force of the connecting rod opposite to the middle pushing force to move opposite to the extending direction, the second contact surface is in contact with the second limiting surface, and at this time, the pushing and clamping block does not enter the clip storage tunnel.

Preferably, the push clamping block is wedge-shaped and has an enlarged end and a reduced end, the first contact surface and the second contact surface are simultaneously contacted with the first limiting surface and the second limiting surface of the movement limiting part at the reduced end, and the rotating shaft of the push clamping block is arranged near the enlarged end, so that the push clamping block can rotate around the reduced end within a limited range under the action of the connecting rod.

Preferably, the clip pusher further comprises a spring with an elastic force opposite to the torque applied to the grip by the pushing force, and a blocking block capable of sliding in the clip storage tunnel and abutting against the clip along the extending direction. One end of the spring is rigidly fixed to the handle, and the other end of the spring is fixed to the blocking and clamping block, so that the elastic force of the spring is opposite to the direction of the torque applied to the handle by the pushing force, and the elastic force of the spring enables the blocking and clamping block to abut against the clamp along the extending direction.

This arrangement allows the pushing force applied by the user to push the clip nearest the exit while pushing the next clip towards the exit, while avoiding the clip slipping out when the user is not applying the pushing force.

By utilizing the improvement of the utility model, the extending direction of the clip storage tunnel is consistent with the direction in which the clip is pushed out from the clip storage tunnel and finally popped out through the clip outlet, so that the failures such as clip clamping and the like are not easy to cause, the working reliability and the user experience of the clip pusher are improved, and the structure is simple and convenient to manufacture.

Drawings

The foregoing summary, as well as the following detailed description of the utility model, will be better understood when read in conjunction with the appended drawings. It is to be noted that the figures are only examples of the claimed invention. In the drawings, like reference characters designate the same or similar elements.

Fig. 1 shows a side view of the initial configuration of the pusher of the utility model, in which the pusher is not subjected to the thrust exerted by the user and the catch is in the working position.

Fig. 2 shows a side view of the pusher block and motion limiter of the present invention.

Fig. 3 shows a force diagram of the inventive pusher-gripper.

FIG. 4 shows a multi-angle perspective view of a pusher block and motion limiter of the present invention.

Fig. 5 shows a side view of the clip pusher of the present invention as it is pushed out of the clip after being subjected to a pushing force applied by a user.

Fig. 6 shows a side view of the present clip pusher when a user loads a clip with the clip stopper in the stop position.

Reference numerals:

1, a shell;

2, a grab handle; 21 a handle rotating shaft;

3 a force transmission part; 31 a connecting rod connecting shaft; 32 pushing the clamping block rotating shaft; 33 a connecting rod;

4, pushing the clamping block; 41 a first contact surface; 42 a second contact surface;

5 a movement restricting section; 51 a first limiting surface; 52 a second limiting surface;

6, blocking and clamping blocks; a 61 stopping part; 62, hooking;

7, a spring; 71 a spring link;

8, storing and clamping the tunnel;

c, clamping; a CA clip queue; a CO clip outlet; a CI clip inlet; the extending direction of the CD storage tunnel;

FP stress point; f0 thrust; fm intermediate thrust; AF dialing power;

Detailed Description

The detailed features and advantages of the present invention are described in detail in the detailed description which follows, and will be sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages of the present invention will be easily understood by those skilled in the art from the description, claims and drawings disclosed in the present specification.

Fig. 1 shows a side view of a clip pusher of the utility model comprising a housing 1, a grip 2, a clip pushing structure, a clip retaining structure and a clip storage tunnel 8. The casing 1 is fixedly provided with a handle rotating shaft 21 and a clamp inlet CI and a clamp outlet CO which are arranged on the casing. The grip 2 is a lever that can rotate around the grip rotation shaft 21.

[ PUSH-CLAMP STRUCTURE ]

The push clamp structure comprises a force transmission part 3, a push clamp block 4 and a motion limiting part 5.

The force transmission part 3 includes a link connection shaft 31 and a pusher block rotation shaft 32 (see fig. 2) parallel to the grip rotation shaft 21, and a link 33.

As shown in fig. 2, the push-clamping block 4 is configured as a wedge-shaped slider with a splayed slot, two sides of the splayed slot are a lower contact surface (a first contact surface 41) and an upper contact surface (a second contact surface 42) which are oppositely arranged, and the first contact surface 41 and the second contact surface 42 form an angle. The push-clamping block 4 has an enlarged end and a reduced end due to the wedge shape, and a push-clamping block rotating shaft 32 is arranged near the enlarged end, so that one end of a connecting rod 33 is rotatably connected with the push-clamping block 4 through the push-clamping block rotating shaft 32, and the other end is rotatably connected with the handle 2 through a connecting rod connecting shaft 31. The reduced end of the push-clamp block 4 can cooperate with the motion limiting part 5 to serve as a pivot point for the push-clamp block 4.

Referring to fig. 3, the link connecting shaft 31 is closer to the grip rotating shaft 21 than the force point FP at which the user holds and presses the grip, so that the user can push the push-clamping block 4 more laborsavingly than a scheme of directly pushing the push-clamping block according to the lever principle.

When the force point FP of the grip 2 is subjected to the pushing force F0, it can be seen that the included angle between the pushing force F0 and the extending direction CD of the clip storage tunnel is greater than 90 degrees, that is, the included angle has a component force far away from the clip outlet CO, so that the interference of the user in the operation of the user on the paper S to be clipped in front of the clip can be avoided.

The force transmission 3 converts the thrust force F0 into an intermediate thrust force Fm, in a direction different from the thrust force F0, it being seen that the angle between the intermediate thrust force Fm and the direction of extension CD of the storage clip tunnel is less than 90 degrees, i.e. with respect to the clip outlet, there is a component force Fm "close to the clip outlet CO to push the pusher block 4 towards the clip outlet.

Meanwhile, the force transmission part 3 causes the middle pushing force Fm to have a component force Fm' in an upward direction in the drawing, so that when the clamping block 4 is subjected to the middle pushing force Fm, the front end part (i.e., the enlarged end) of the clamping block 4 can move in the upward direction in fig. 3 to partially enter the clamp storage tunnel 8 and abut against the clamp C; when the pushing and clamping block 4 is not subjected to the intermediate pushing force Fm, the pushing and clamping block 4 does not enter the clip storage tunnel 8 under the pulling of the connecting rod 33 due to the elastic force of the spring 7, so that the forward movement of the clip C in the clip storage tunnel 8 is prevented from being blocked.

The movement restricting portion 5 of the present invention will be described in detail below.

Referring to fig. 2, the movement restricting portion 5 includes a lower restricting surface (a first restricting surface 51) and an upper restricting surface (a second restricting surface 52), and the first restricting surface 51 is parallel to the second restricting surface 52 and parallel to the extending direction CD of the storage tunnel. The movement limiting section 5 can be designed as a guide rail arranged on the housing 1, and the push block 4 can be hooked by means of its splayed slot on the movement limiting section 5 in the form of a guide rail. The first contact surface 41 of the push-clamping block 4 can contact with the first limiting surface 51 of the movement limiting part 5, the second contact surface can contact with the second limiting surface 52, and at the reduced end of the push-clamping block 4, the first contact surface 41 and the second contact surface 42 simultaneously contact with the first limiting surface 51 and the second limiting surface 52, so that the reduced end can be used as a pivot point of the push-clamping block 4.

When the grip 2 is not subjected to the pushing force applied by the user, the push block 4 is rotated about its reduced end to the lower position shown in fig. 1, and the second restricting surface 42 comes into contact with the second restricting surface 52 of the movement restricting portion 5 to prevent the push block 4 from moving downward and disengaging from the movement restricting portion.

When the force-receiving point FP of the grip 2 receives a pushing force F0 against the spring moment of the spring, the force transmission part 3 converts the pushing force F0 into an intermediate pushing force Fm in a direction different from the pushing force F0. As described above, the intermediate pushing force Fm moves the push block 4 in the upward direction in fig. 1-3, and at the same time, due to the splayed grooved structure of the push block 4, i.e., the first contact surface 41 and the second contact surface 42 are angled, the push block is rotated about its reduced end until the first contact surface 41 abuts against the first limiting surface 51 of the movement limiting portion 5, to the upper position shown in fig. 5.

Thereafter, since the first limiting surface 51 is angled to the intermediate pushing force Fm and parallel to the extension direction CD of the storage tunnel, the moving direction of the pusher block 4 is limited to be parallel to the extension direction CD of the storage tunnel 8, so that the clip C is pushed to advance along the extension direction CD of the storage tunnel and to be ejected from the clip outlet CO, having entered the storage tunnel 8 and abutting against the clip C.

[ BUILD-UP CLAMP STRUCTURE ]

Figure 6 shows the catch structure of the present invention and the process of loading clips into the storage tunnel 8.

The blocking clamp structure comprises a blocking clamp block 6 and a spring 7.

The blocking and clamping block 6 can slide along the storage and clamping tunnel 8 in the range of the storage and clamping tunnel 8 and abut against the clamp C accommodated in the storage and clamping tunnel 8 along the extension direction CD of the storage and clamping tunnel; the catch block 6 includes a stopper (not shown), a hook 62; the stopper portion can be engaged with the housing 1 to hold the catch block 6 in the stop position shown in fig. 6.

The spring 7 is configured as a tension straight spring inclined relative to the storage and clamping tunnel 8; one end of the spring 7 is fixed to the hook 62 of the catch block 6 and the other end of the spring 7 is fixed to the spring link 71 of the grip 2. The hook 62 and the spring link 71 are located on the same side of the storage and clamping tunnel 8 so as to prevent the spring 7 from bending while avoiding the storage and clamping tunnel 8, and therefore the spring 7 formed as a straight spring can reduce the component dislocation and failure rate.

Furthermore, as can be seen in connection with fig. 3, the spring force Fs of the spring 7 is opposite to the moment direction of the pushing force F0 for the grip 2, so when the pushing force F0 is applied to the grip 2, the spring force of the spring 7 causes the blocking piece 6 to abut against the clip C in the extension direction CD of the storage clip tunnel, which makes it possible for one pressing operation by the user to push out the clip closest to the clip exit and push the clip immediately behind to the clip exit for the next pushing-out operation by the user, while also preventing the clip from backing up.

The process of loading and using the clip C pusher of the present invention will now be described with reference to FIGS. 1 and 6.

When the clip queue CA of the clip storage tunnel 8 has been completely pushed out and clips C need to be loaded into the clip storage tunnel 8, the shifting force AF is applied to the blocking block 6 located at the working position in fig. 1, the blocking block 6 moves away from the clip outlet CO against the spring force of the spring 7 to the blocking position shown in fig. 6, and the passage between the clip storage tunnel 8 and the clip inlet CI is opened to allow the clip queue CA to enter the clip storage tunnel 8 from the clip inlet CI;

when the loading of the clips C into the clip storage tunnel 8 is completed, the catch block 6 is released from the catch position shown in fig. 6, moves against the spring force of the spring 7 toward the clip outlet CO to the working position shown in fig. 1, and abuts against the clip queue CA to prevent the clip queue CA from backing up and even slipping out of the clip inlet CI.

When it is desired to push out a clip C, the grip 2 is subjected to a pushing force F0, pushing the gripping block 4 partially into the storage tunnel 8 to push one clip C (either the front-most clip or the rear clip) in the clip queue CA towards the clip outlet CO, while the spring force applied by the spring 7 to the catch block 6 increases and drives the catch block 6 to move in the storage tunnel 8 towards the clip outlet CO. It will be appreciated that the spring force of the spring 7 itself cannot push the front-most clip C out of the clip outlet CO.

After the ejection of the clip C is completed, the pushing force F0 applied to the grip 2 is released, and the grip is rotated in the opposite direction around the grip rotation shaft 21 by the elastic force of the spring 7, so that the pusher block 4 is pulled back in the direction opposite to the extension direction CD by the link 33 while exiting the clip storage tunnel 8, and finally returns to the initial position to push the next clip.

Although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the utility model, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.

Claims (9)

1. A clamp pushing device comprises a shell (1), a clamp storage tunnel (8), a grab handle (2), a force transmission part (3), a clamp pushing block (4) and a motion limiting part (5);

-said storage tunnel (8) is adapted to receive one or more clips (C) therein;

a grab handle rotating shaft (21) is fixedly arranged on the shell (1);

the grab handle (2) is a lever capable of rotating around the grab handle rotating shaft (21), and the force transmission part (3) connects the grab handle (2) and the push clamping block (4) to enable the grab handle (2) and the push clamping block (4) to be linked;

the method is characterized in that:

the force transmission part (3) connects the grab handle (2) and the pushing and clamping block (4), when a force bearing point (FP) of the grab handle (2) receives a pushing force (F0), the force transmission part (3) converts the pushing force (F0) into an intermediate pushing force (Fm) with a direction different from that of the pushing force (F0), the pushing and clamping block (4) is pushed to move and abut against a first limiting surface (51) of the movement limiting part (5), the first limiting surface (51) is parallel to the clip storage tunnel (8), so that the movement direction of the pushing and clamping block (4) is limited to be parallel to the extension direction (CD) of the clip storage tunnel (8), and the clips (C) contained in the clip storage tunnel (8) are pushed to advance along the extension direction and eject out;

the first limiting surface (51) is angled with respect to the intermediate thrust (Fm).

2. The pusher-gripper of claim 1, wherein:

the included angle between the thrust (F0) and the extending direction is greater than 90 degrees, and the included angle between the middle thrust (Fm) and the extending direction is less than 90 degrees.

3. The pusher-gripper of claim 1, wherein:

the force transmission part (3) comprises a push clamping block rotating shaft (32) and a connecting rod (33); the push clamping block (4) is rotatably connected with the connecting rod (33) through the push clamping block rotating shaft (32).

4. The pusher-gripper of claim 3, wherein:

the force transmission part (3) comprises a connecting rod connecting shaft (31) parallel to the grab handle rotating shaft (21); the connecting rod (33) is rotatably connected with the grab handle (2) through the connecting rod connecting shaft (31), and the connecting rod connecting shaft (31) is closer to the grab handle rotating shaft (21) than the stress point (FP).

5. The pusher-gripper of claim 3, wherein:

the movement restricting portion (5) further includes a second restricting surface (52), the second restricting surface (52) being parallel to the first restricting surface (51); the pusher block (4) is wedge-shaped, gradually enlarging in the direction of extension (CD), and comprises a first contact surface (41) and a second contact surface (42) angled, the first contact surface (41) being contactable with the first limiting surface (51) and the second contact surface (42) being contactable with the second limiting surface (52); when the pusher block (4) is moved in the extension direction (CD) by the intermediate thrust (Fm) of the connecting rod (33), the first contact surface (41) is in contact with the first limiting surface (51), at least a portion of the pusher block (4) entering into the storage tunnel (8) and abutting against the clip (C), and when the pusher block (4) is not subjected to the intermediate thrust (Fm) of the connecting rod (33) or is moved in the extension direction (CD) by a force of the connecting rod (33) opposite to the intermediate thrust (Fm), the second contact surface (42) is in contact with the second limiting surface (52), at which time the pusher block (4) does not enter into the storage tunnel (8).

6. The pusher-gripper of claim 5, wherein:

the push clamping block (4) is wedge-shaped and provided with an enlarged end and a reduced end, the first contact surface (41) and the second contact surface (42) are simultaneously contacted with the first limiting surface (51) and the second limiting surface (52) of the movement limiting part (5) at the reduced end, and the push clamping block rotating shaft (32) is arranged close to the enlarged end, so that the push clamping block (4) can rotate around the reduced end in a limited range under the action of the connecting rod (33).

7. The pusher-gripper of claim 5, wherein:

the clamp pusher further comprises a spring (7), and the elastic moment applied to the handle (2) by the spring (7) is opposite to the moment applied to the handle (2) by the pushing force (F0).

8. The pusher-gripper of claim 1, wherein:

the clip blocking device further comprises a clip blocking block (6), wherein the clip blocking block (6) can slide in the clip storage tunnel (8) and abuts against the clip (C) along the extending direction to prevent the clip (C) from retreating.

9. The pusher-gripper of claim 8, wherein:

the clamp further comprises a spring (7), one end of the spring (7) is fixed to the grab handle (2), the other end of the spring (7) is fixed to the blocking and clamping block (6), so that the elastic force of the spring (7) is opposite to the torque applied to the grab handle (2) by the pushing force (F0), and the elastic force of the spring (7) enables the blocking and clamping block (6) to abut against the clamp (C) along the extending direction to prevent the clamp (C) from retreating.

Images