CN205371181U - Clamping structure - Google Patents

Abstract

The utility model discloses a clamping structure, a clamping structure, the clamping structure comprises a ferrule, and a card core inserted into the ferrule; the clamping core is provided with a top cover and a contractable clamping part The side wall of the ferrule is provided with a gap corresponding to the clamping part, and the outer wall of the ferrule is provided with a clamping boss; the clamping part protrudes from the gap from the inside to the outside of the ferrule side wall, and cooperate with the clamping boss to form a clamping position for clamping the parts to be clamped; the clamping part can be retracted into the ferrule under external force to release the clamping of the parts Card connection; the inner wall of the ferrule is provided with a limit boss, the cover edge of the top cover can be stuck on one side of the limit boss, and the clamping part can be stuck on the side of the limit boss On the other side: an elastic member is pre-compressed between the edge of the top cover and the limiting boss. The clipping structure can avoid loss of the clipping structure.

Description

a snap-in structure

technical field

The utility model relates to the technical field of fixed connection, in particular to a clamping structure.

Background technique

There are many forms of fixed connection between plates, and snap connection is one of the commonly used connection methods. In the fixed connection of the vehicle, the clamping structure is mainly used in the connection between the air intake pipe of the intake system and the front frame, and the connection between the exhaust heat shield and the body.

At present, generally used clamping structures include snap-in clamping and bolt clamping. During the disassembly and installation process, the operation of the two is cumbersome. It is necessary to disassemble and connect the clamping structure to realize the disassembly and clamping of the panels. During the installation process, it is necessary to fasten the independent sub-buttons and female buckles together. In this way, it is easy to cause the loss of the sub-buttons and female buckles, and re-match the sub-buttons. At the same time, the operation is cumbersome, time-consuming and laborious.

In view of this, there is an urgent need to provide a clamping structure, which can prevent the clamping structure from being lost when the components for mounting the clamping are removed.

Utility model content

The utility model aims at proposing a clamping structure. Under the working condition of dismantling parts, the clamping structure is still an integrated structure, which effectively avoids the loss of components of the clamping structure.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A clamping structure, the clamping structure includes a ferrule, and a ferrule inserted into the ferrule;

The card core is provided with a top cover and a contractible clamping part; the side wall of the ferrule is provided with a gap corresponding to the clamping part, and the outer wall of the ferrule is provided with a clamping boss;

The clamping portion protrudes from the notch from the inside to the outside of the side wall of the ferrule, and cooperates with the clamping boss to form a clamping position for clamping the parts to be clamped;

The clamping part can be retracted into the ferrule under external force, so as to release the clamping of the parts;

The inner wall of the ferrule is provided with a limit boss, the cover edge of the top cover can be stuck on one side of the limit boss, and the clamping part can be stuck on the other side of the limit boss ;

An elastic member is pre-compressed between the edge of the top cover and the limiting boss.

Further, the clamping part is arranged in a wedge shape, and the ferrule is provided with a guide slope. When the external force pushes the core along the insertion direction, the guide slope guides the clamping part to retract into the ferrule.

Further, two calipers are symmetrically arranged on the clamp core relative to the axis of the ferrule, and the jaws of the calipers are wedge-shaped clamping parts.

Further, a guide groove is defined on the inner wall of the ferrule, and the guide groove guides the jaws of the caliper to enter the notch.

Further, the limiting boss is an annular boss.

Further, the bottom of the ferrule is open.

Further, an operating handle is provided on the top of the card core.

Further, the operating handle defines a tool slot for inserting an operating tool.

Compared with the prior art, the clamping structure described in the utility model has the following advantages:

The card core in the clamping structure is inserted into the ferrule, and under the working condition of the clamping part, the clamping part protrudes from the gap from the inside to the outside of the side wall of the ferrule, and forms an energy gap with the clamping boss of the ferrule. The clamping position of the clamping part, that is to say, when clamping, the clamping structure clamps the component to be clamped through the clamping part and the clamping boss. In the case of disassembling parts, the operator pushes the clamping part to retract the clamping part into the ferrule, thereby releasing the clamping effect; when the clamping function is released and the clamping structure is in a non-clamping state, the The elastic part is pre-compressed between the cover edge and the limit boss, so as to provide the card core with a force from the bottom of the ferrule to the opening direction. Under the action of the spring, the clamping part presses against the limit boss to limit the card core. Comes out through the opening of the ferrule. In addition, the spring can adjust the processing deviation of the hole position or the displacement deviation of the installation on the component to avoid the phenomenon of virtual clamping or loosening caused by uneven force on the clamping structure. In this way, the card core can always be limited in the ferrule, so that the two can keep interfering with each other to form an integrated clamping structure, and avoid the phenomenon that the card core and the ferrule are separated and lost after disassembly.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the overall schematic diagram of the clamping parts of the clamping structure in the embodiment of the utility model;

Fig. 2 is a cross-sectional view of the clamping structure in Fig. 1;

Fig. 3 is the structural representation of card core in Fig. 1;

FIG. 4 is a schematic structural diagram of the ferrule in FIG. 1 .

Explanation of reference signs:

10-card core, 101-top cover, 102-caliper, 1021-pliers head, 103-operating handle, 1031-tool slot, 20-ferrule, 201-limiting boss, 202-notch, 203-clamping convex Platform, 204-guide groove, 205-guiding slope, elastic member 30.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. In addition, for ease of understanding and concise description, the following discussion will be made in conjunction with the connection between the exhaust heat shield and the vehicle body. Of course, the clamping structure can also be used to clamp other parts to be clamped. The beneficial effects can be found in this article .

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is an overall schematic diagram of the clamping parts of the clamping structure in an embodiment of the present invention; FIG. 2 is a cross-sectional view of the clamping structure in FIG. 1 .

The utility model provides a clamping structure for clamping parts. As shown in the figure, the clamping structure includes a clamping core 10 and a clamping sleeve 20 which are integrated with each other. Specifically, the clamping core 10 is provided with a In the contracted clamping portion, a notch 202 is formed on the side wall of the ferrule 20 , and a clamping boss 203 is provided on the outer wall.

When adopting this clamping structure to clamp parts, the clamping core 10 is inserted from the top of the ferrule 20 to the bottom, and the clamping part extends from the side wall of the ferrule 20 from the inside to the outside through the gap 202. At this time, the clamping part and the clamping part The clamping boss 203 of the sleeve 20 cooperates to form a clamping position for clamping the parts to be clamped; direct effect.

The distance between the clamping portion and the clamping boss 203 is determined according to the sum of the thicknesses of the parts to be clamped. For example, when clamping the plate at the joint between the exhaust heat shield and the vehicle body, the space distance between the two is approximately The thickness of the two panels. That is to say, when opening the notch 202 , the distance from the edge of the top of the notch 202 to the clamping boss 203 should meet the requirement that the clamping structure can clamp the parts.

The clamping structure is not limited to clamping two parts, and the clamping structure can also be used for the clamping of three or more parts. It only needs to make the clamping between the clamping part and the clamping boss 203 The position can meet the thickness of the parts to be clamped, and each part can be clamped.

When disassembling the clamping structure, that is, when releasing the clamping effect of the clamping structure on the parts, it is only necessary to retract the clamping part into the ferrule 20, rotate the clamping core 10 so that the position of the clamping part avoids the gap 202, and disassemble it. After the parts are clamped together, the clamping part can extend out of the ferrule through the notch 202 , without separating the ferrule 10 from the ferrule 20 to realize disassembly. Moreover, under the condition of disassembling the parts, the clamping part can still be limited in the notch 202, which can avoid the axial movement of the core 10 relative to the ferrule 20, and effectively avoid the loss of parts caused by the separation of the core 10 and the ferrule 20. .

Further, the card core 10 is also provided with a top cover 101, and the inner wall of the ferrule 20 is provided with a limiting boss 201, the cover edge of the top cover 101 can be stuck on one side of the limiting boss 201, and the clamping part can be stuck on the limiting boss 201. The other side of the boss 201. Through the limiting action of the cover edge of the top cover 101 , the clamping portion and the limiting boss 201 , the axial movement position of the core 10 along the ferrule 20 can be limited. When the bottom of the ferrule 20 is provided with an opening, the limit resistance effect of the cover edge of the top cover 101 and the limit boss 201 can also prevent the card core 10 from protruding from the bottom; For the clamping function, if the clamping part does not enter the notch 202, the limiting boss 201 can resist the clamping part from moving toward the insertion port, thereby restricting the card core 10 from coming out of the top insertion port of the ferrule. In this way, the position of the card core 10 is further limited through the cooperation of the edge of the top cover 101 with the clamping portion to the limit boss 201, and the separation of the clamping core 10 and the ferrule 20 is avoided when the clamping portion does not enter the notch 202 to limit the position. .

Further, the clamping structure further includes an elastic member 30. In a specific embodiment, as shown in FIG. 2, the elastic member 30 is a spring. The spring is pre-compressed between the edge of the cover and the limiting boss 201 , so as to provide force for the core 10 from the bottom of the ferrule 20 to the opening direction. The spring elastically connects the clamp core 10 and the ferrule 20, and the spring can adjust the machining deviation of the hole position of the clamping structure installed on the parts or the displacement deviation during installation, so as to avoid the virtual clamping caused by the uneven force of the clamping structure Or back loose and so on.

The elastic member 30 is not limited to a spring, but can also be other elastic parts, as long as it can be compressed and arranged between the cover edge and the limiting boss 201, it can realize the above-mentioned functions of buffering and adjusting deviation.

Further, the clamping part includes at least two calipers 102. In a specific embodiment, as shown in FIG. Corresponds to the number of calipers 102 . The pincer head 1021 is a wedge, and the top of the wedge is a large end and the bottom is a small end. When the card core 10 is inserted into the ferrule 20, at first pinch the two calipers 102 to make them close, so that the jaws 1021 can be inserted into the ferrule 20 through the opening of the ferrule 20, and then the pincers 1021 of the calipers 102 can be inserted into the ferrule 20 through the gap. 202 protrudes from the side wall of the ferrule 20 to clamp parts. At the same time, by using the action of the spring, the pliers head 1021 can also be tightly pressed against the edge of the notch 202 to improve the reliability and firmness of the clamping parts between the caliper 102 and the clamping boss 203 .

The clamp 10 can be provided with two calipers 102 to be able to fully clamp the parts to be clamped. Of course, in order to ensure the firmness of the clamping connection, a plurality of calipers 102 can also be provided. Uniform and symmetrical setting.

Correspondingly, the notches 202 and the clamping bosses 203 are in one-to-one correspondence with the caliper 102 , so as to realize firm and stable clamping parts. The clamping boss 203 can be an annular boss provided on the outer peripheral wall of the ferrule 20 , which does not need to correspond to the position of the notch 202 , which can simplify the processing technology.

The wedge-shaped pliers head 1021 can facilitate the insertion of the card core 10 into the ferrule 20 on the one hand, so that it can pass through the limiting boss 201 smoothly; The ferrule 20 is retracted from the notch 202 .

When dismounting the clamped parts, press down the top cover 101 of the card core 10 so that the wedge-shaped pliers head 1021 can retract into the ferrule 20 from the gap 202, and then rotate the card core 10 so that the caliper 102 avoids the gap 202 , the pliers head 1021 is located inside the ferrule 20 , and under the action of the spring, the pliers head 1021 presses against the limiting boss 201 to restrict the core 10 from coming out of the opening of the ferrule 20 . That is to say, the pliers head 1021 not only plays the role of clamping, but also plays the role of restricting the ferrule 10 in the ferrule 20 .

Further, when inserting the card core 10 for clamping, in order to make the pincer head 1021 of the caliper 102 accurately enter the gap 202 and extend out of the side wall of the ferrule 20, the inner wall of the ferrule 20 is also provided with a guide groove 204, the guide The groove 204 matches the wedge head of the wedge. When the caliper 102 enters the ferrule 20 , the core 10 is rotated so that the wedge head falls into the guide groove 204 , thereby entering the notch 202 under the guidance of the guide groove 204 . Please also combine it with that shown in Figure 4. Specifically, the guide groove 204 is opened to the gap 202 from the side where the limiting boss 201 abuts against the clamp head 1021, so that when the wedge head is against the limiting boss 201, directly Rotating the clamp 10 can make the wedge head enter the guide groove 204, which reduces the cumbersome work of pressing down the clamp 10 to adjust the position of the wedge head and the guide groove 204, and can realize the clamping connection more quickly and smoothly.

When the jaw 1021 of the caliper 102 is retracted into the ferrule 20, in order to improve the smoothness of its operation, the ferrule 20 is provided with a guide slope 205, as shown in FIG. The outer edge extends toward the inside of the ferrule 20 and slopes toward the bottom of the ferrule 20 . In this way, the guide inclined surface 205 can guide the wedge to gradually slide into the ferrule 20 through the notch 202, so that the operation is stable and reliable.

In order to ensure smooth rotation of the ferrule 10 in the ferrule 20 and smooth movement in the axial direction, the inner peripheral wall of the ferrule 20 is set as a circumferential wall, and the processing technology is simple.

In order to effectively limit the card core 10, the limit boss 201 is an annular boss arranged on the peripheral wall, that is to say, the limit boss 201 is closed, when the caliper 102 rotates to any position in the ferrule 20 , can resist the pliers head 1021 , thereby restricting the core 10 from coming out of the opening of the ferrule 20 .

The bottom of the ferrule 20 is open, that is to say, the ferrule 20 is a sleeve body with openings at both ends. If it is arranged in this way, when it is necessary to separate the ferrule 10 and the ferrule 20, the opening at the bottom can be inserted into tools, etc., for easy operation. .

As shown in Figure 1 and Figure 3, in order to facilitate the operation of the card core 10 when snapping and disassembling, an operating handle 103 can be provided on the top of the card core 10, specifically, the operating handle 103 is a bar-shaped rod placed on the top cover 101, In this way, the operator can hold the bar to rotate the cartridge 10, which is convenient and labor-saving.

Of course, the form of the operating handle 103 is not limited to a bar, as long as it is convenient for the operator to hold, and the specific shape does not limit the technical solution claimed in this application.

Further, a tool slot 1031 for inserting an operating tool can also be provided on the operating handle 103 , and when the operating tool is required to assist in rotating the cartridge 10 , the operating tool can be inserted into the tool slot 1031 .

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

Claims (8)

1. an interface arrangment, it is characterised in that described interface arrangment includes cutting ferrule (20), inserts the core of the card (10) of described cutting ferrule (20)；

Described the core of the card (10) is provided with top cover (101) and the Access Division that can shrink；The sidewall of described cutting ferrule (20) offers the gap (202) corresponding with described Access Division, and the outer wall of described cutting ferrule (20) arranges clamping boss (203)；

The sidewall of described cutting ferrule (20) is stretched out from inside to outside by described gap (202) in described Access Division, and cooperatively forms, with described clamping boss (203), the clamping position that the part of clamping is treated in clamping；

Described Access Division can in cutting ferrule (20) described in retraction under external force, to release clamping to described part；

The inwall of described cutting ferrule (20) is provided with positive stop lug boss (201), and the cover rim of described top cover (101) can be stuck in the side of described positive stop lug boss (201), described Access Division can be stuck in the opposite side of described positive stop lug boss (201)；

The flexible part of precommpression (30) between the cover rim of described top cover (101) and described positive stop lug boss (201).

2. interface arrangment according to claim 1, it is characterized in that, the wedge shaped setting in described Access Division, described cutting ferrule (20) is provided with guiding surface (205), when external force is along direction of insertion promotion described the core of the card (10), described guiding surface (205) leads in cutting ferrule (20) described in the retraction of described Access Division.

3. interface arrangment according to claim 2, it is characterized in that, the axisymmetrical of the relatively described cutting ferrule (20) of described the core of the card (10) arranges two clamp (102), the described Access Division that the binding clip (1021) of described clamp (102) is wedge shape.

4. interface arrangment according to claim 3, it is characterized in that, the inwall of described cutting ferrule (20) offers guide groove (204), and the lead binding clip (1021) of described clamp (102) of described guide groove (204) enters described gap (202).

5. the interface arrangment according to any one of claim 1-4, it is characterised in that described positive stop lug boss (201) is annular boss.

6. the interface arrangment according to any one of claim 1-4, it is characterised in that the bottom opening of described cutting ferrule (20).

7. the interface arrangment according to any one of claim 1-4, it is characterised in that the top of described the core of the card (10) arranges operation handle (103).

8. interface arrangment according to claim 7, it is characterised in that described operation handle (103) offers the well (1031) embedded for operation instrument.