CN211267129U

CN211267129U - Clamping device

Info

Publication number: CN211267129U
Application number: CN201920422602.4U
Authority: CN
Inventors: 杨玉海; 郭杰烽; 陈珍强
Original assignee: Suzhou Industrial Park Trans Automobile Electronics Co ltd
Current assignee: Suzhou Industrial Park Trans Automobile Electronics Co ltd
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2020-08-14
Anticipated expiration: 2029-03-31

Abstract

The utility model discloses a clamping device, including integral type clamping device and spring clamping device, integral type clamping device follows the vertical symmetrical centre gripping of heating rod in the both sides of heating rod, spring clamping device follows the vertical symmetrical centre gripping of heating rod in the both sides of heating rod, just integral type clamping device is the cross with spring clamping device and sets up relatively, integral type clamping device is including holding the dish, holding strip and terminal crimping head with adding, it is located respectively to hold dish and terminal crimping head with adding the both ends of holding the strip, the contact site of holding strip and heating rod forms first centre gripping point with adding, spring clamping device forms the second centre gripping point with the contact site of heating rod, first centre gripping point is close to the electrically conductive end of heating rod, the second centre gripping point is close to in the middle of the heating rod. The utility model discloses can realize the firm centre gripping to the heating rod.

Description

Clamping device

Technical Field

The utility model relates to an oxygen sensor field especially relates to a clamping device, concretely relates to novel clamping device of oxygen sensor heating rod for motorcycle.

Background

The oxygen sensor is an important component in an engine management system, is arranged in an exhaust system and is used for sensing oxygen concentration and realizing closed-loop control. The mounting position of the oxygen sensor determines that the oxygen sensor is subjected to high vibration and temperature stress during the life. For the finger-shaped oxygen sensor, the heater is an independent device, the heating rod needs to be reliably connected with a heating power supply, otherwise, power cannot be supplied, and the heating rod cannot heat the sensor.

In traditional oxygen sensor for car, contact spring symmetry centre gripping is on the heating rod, and forms two pinch points with the heating rod, and one of them pinch point is used for the centre gripping heating rod to fix the heating rod, another pinch point is connected with the heating rod is electric, is used for the conduction voltage to give the heating rod so that heat the heating rod. However, the existing contact spring has insufficient clamping force on the heating rod, so that the electric connection of the heating rod fails and the like. Therefore, there is a need to provide a new solution.

SUMMERY OF THE UTILITY MODEL

For overcoming the defects of the prior art, the utility model aims at providing a clamping device which can realize the firm clamping of a heating rod and improve the stability of an oxygen sensor.

In order to solve the technical problems in the background art, the clamping device of the utility model comprises an integrated clamping device and a spring type clamping device, the integrated clamping device is symmetrically clamped at the two sides of the heating rod along the longitudinal direction of the heating rod, the spring type clamping device is symmetrically clamped at the two sides of the heating rod along the longitudinal direction of the heating rod, and the integrated clamping device and the spring type clamping device are arranged in a cross way,

the integrated clamping device comprises a clamping disc, a clamping strip and a terminal crimping head, the clamping disc and the terminal crimping head are respectively positioned at two ends of the clamping strip, a first clamping point is formed at the contact part of the clamping strip and the heating rod, a second clamping point is formed at the contact part of the spring type clamping device and the heating rod,

the first clamping point is close to the conductive end of the heating rod, and the second clamping point is close to the middle of the heating rod.

Further, add and hold the dish, add and hold strip and terminal crimping head as an organic whole and connect, it is the lamellar structure to add to hold the strip, it has a clamping part to add to hold the strip, the clamping part is close to add and holds the dish, the clamping part has the centre gripping groove, the clamping part is towards the heating rod, the centre gripping groove block is in the outside of heating rod.

Furthermore, the clamping strip is provided with a first connecting strip and a second connecting strip which is connected with the first connecting strip in an adjacent mode, an included angle is formed between the first connecting strip and the second connecting strip, the clamping portion is formed at the connecting position of the first connecting strip and the second connecting strip, and the clamping portion protrudes towards the target to be clamped.

Further, the distance between the first clamping point and the second clamping point is greater than the distance between the second clamping point and the conductive end of the heating rod and less than half of the length of the heating rod.

Furthermore, the clamping groove is in a V shape perpendicular to the cross section direction of the holding strip,

the groove line direction of the clamping groove is consistent with the longitudinal direction of the holding strip.

Further, the holding groove is formed by punching in the width direction of the holding strip (12). Further, the opening angle of the clamping groove is an obtuse angle.

Furthermore, the terminal crimping connector also comprises a third connecting strip, wherein one end of the third connecting strip is connected with the second connecting strip, and the other end of the third connecting strip is connected with the terminal crimping connector.

Furthermore, add and hold dish, add and hold strip and terminal crimping head as an organic whole stamping forming.

The utility model discloses a clamping device, it realizes the firm centre gripping to the heating rod through two holders with cross direction centre gripping heating rod simultaneously to oxygen sensor's stability can has been improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the integrated clamping device of the present invention;

FIG. 2 is a schematic structural view of the integrated clamping device of the present invention;

FIG. 3 is a schematic view of an embodiment of the integrated clamp of the present invention;

FIG. 4 is a schematic view of an integrated clamp of the present invention in another embodiment;

FIG. 5 is a side schematic view of FIG. 4;

FIG. 6 is a schematic top view of FIG. 4;

fig. 7 is a schematic structural view of the spring type clamping device of the present invention;

fig. 8 is a side view schematic of fig. 7.

Wherein, 1-integral clamping device, 2-heating rod, 5-spring type clamping device, 11-clamping disk, 12-clamping strip, 13-terminal crimping head, 121-first connecting strip, 122-second connecting strip, 123-third connecting strip, 124-clamping part, 125-clamping groove, 6-first clamping point, 7-second clamping point, 51-upper fixed structure, 52-lower elastic structure, 54-limit structure.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through the interior of two elements or in interactive relation with one another. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an integrated clamping device according to the present invention; FIG. 2 is a schematic structural view of the integrated clamping device of the present invention; fig. 3 is a schematic structural view of the integrated clamping device according to an embodiment of the present invention. The utility model discloses an integral type clamping device 1, including adding dish 11, add and hold a 12 and terminal crimping head 13, add and hold dish 11 and terminal crimping head 13 and be located respectively add the both ends of holding a 12, just add and hold dish 11, add and hold a 12 and terminal crimping head 13 connection as an organic whole.

The holding strip 12 has a holding portion 124, the holding portion 124 has a holding groove 125, the holding portion 124 faces the object to be held, and the holding groove 125 is engaged with the outer side of the object to be held. It should be noted that, in the present invention, the clamping groove 125 is clamped outside the object to be clamped, wherein the clamping groove may be completely attached outside the object to be clamped, or partially attached outside the object to be clamped.

The holding strip 12 is of a sheet-like structure.

The clamping strip 12 has a first connecting strip 121 and a second connecting strip 122 adjacently connected to the first connecting strip 121, an included angle is formed between the first connecting strip 121 and the second connecting strip 122, the clamping portion 124 is formed at the connection position of the first connecting strip 121 and the second connecting strip 122, and the clamping portion 124 protrudes toward the object to be clamped.

Perpendicular to the cross-sectional direction of the holding strip 12, the holding groove 125 is V-shaped. In other embodiments, the shape of the clamping groove 125 is not limited.

In one embodiment, facing the direction of the clamping groove 125, the groove line direction of the clamping groove 125 coincides with the longitudinal direction of the gripping strip 12.

In one embodiment, the clamping groove 125 is formed by stamping across the width of the applicator strip 12. The width of the clamping groove 125 is less than the width of the holding strip.

In one embodiment, the opening angle of the clamping groove 125 is an obtuse angle. Preferably, the opening angle of the clamping groove 125 is an obtuse angle. Preferably, the opening angle of the V-shaped clamping groove is 100-150 degrees.

The utility model discloses an integral type clamping device still includes third connecting strip 123, the one end of third connecting strip 123 with second connecting strip 122 is connected, the other end with terminal crimping head 13 is connected. The third connecting bar 123 is parallel to the heating rod 2.

The clamping plate 11, the clamping strip 12 and the terminal crimping head 13 are integrally welded and connected.

The utility model discloses an integral type clamping device, it can realize the firm centre gripping to the heating rod.

Examples

Referring to fig. 4 to 6, fig. 4 is a schematic structural view of a clamping device according to an embodiment of the present invention; fig. 5 is a side view schematic of fig. 4. Fig. 6 is a schematic top view of fig. 4. As shown in fig. 4 to 6, in this embodiment, the clamping device includes an integrated clamping device 1 and a spring type clamping device 5, the integrated clamping device 1 is symmetrically clamped on two sides of the heating rod 2 along the longitudinal direction of the heating rod 2, the spring type clamping device 5 is symmetrically clamped on two sides of the heating rod 2 along the longitudinal direction of the heating rod 2, and the integrated clamping device 1 and the spring type clamping device are arranged in a cross-shaped manner.

Integral type clamping device 1 is including holding dish 11, holding strip 12 and terminal crimping head 13 with adding, hold dish 11 and terminal crimping head 13 with adding and be located respectively add the both ends of holding strip 12, the contact site that adds holding strip 12 and heating rod 2 forms first centre gripping point 6, spring clamping device 5 forms second centre gripping point 7 with the contact site of heating rod 2.

The first clamping point 6 is close to the conductive end of the heating rod 2, and the second clamping point 7 is close to the middle of the heating rod 2.

Further, the distance between the first clamping point 6 and the second clamping point 7 is greater than the distance between the second clamping point 7 and the conductive end of the heating rod 2, and is less than half of the length of the heating rod 2, so that the first clamping point 6 and the second clamping point 7 are separated by a distance and do not interfere with each other, and the stability of the whole sensor is improved.

Referring to fig. 7 and 8, fig. 7 is a schematic structural view of the spring type clamping device of the present invention; fig. 8 is a side view schematic of fig. 7. As shown in fig. 7 and 8, the upper fixing structure 51 and the lower elastic structure 52 are arranged on the mating side of the spring type clamping device 5 and the ceramic bushing, the upper fixing structure 51 of the spring type clamping device 5 is assembled with the upper fixing structure of the ceramic bushing, the lower elastic structure 52 of the spring type clamping device 5 is assembled with the lower fixing structure of the ceramic bushing to form an inverted structure, and the inverted structure has the characteristics of easy assembly and difficult disassembly.

The upper end of the side part of the spring type clamping device opposite to the heating rod is provided with an R-shaped bending part, when the heating rod is pressed into the spring type clamping device, the R-shaped structures of the two spring type clamping devices form a guide channel, on one hand, the heating rod is conveniently pressed into the heating rod, and on the other hand, the spring type clamping device cannot be crushed. The side of the spring-loaded clamping device facing away from the heating rod is provided with an upper fixed structure 51 and a lower elastic structure 52. The bending end of the spring type clamping device is provided with a deformation limiting structure, when the spring type clamping device 5 deforms under pressure, the limiting structure 54 can slide firstly and is limited after moving to the structure 57, and therefore the contact force between the spring type clamping device and the heating rod can be increased. Wherein, the contact part of the spring type clamping device 5 and the heating rod 2 is provided with a salient point 56. The R-shaped bending design has the parameter selection range as follows: h is 0.5r, -15 ° ≦ Φ ≦ 8 °, preferably, h ═ r, Φ ≦ 10 °.

The utility model discloses a clamping device, it is through two holders with cross direction centre gripping heating rod simultaneously to the realization is to the firm centre gripping of heating rod.

The present invention is applicable to, but not limited to, a novel oxygen sensor for a motorcycle.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and changes may be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A clamping device is characterized by comprising an integrated clamping device (1) and a spring type clamping device (5), wherein the integrated clamping device (1) is symmetrically clamped at two sides of a heating rod (2) along the longitudinal direction of the heating rod (2), the spring type clamping device (5) is symmetrically clamped at two sides of the heating rod (2) along the longitudinal direction of the heating rod (2), the integrated clamping device (1) and the spring type clamping device (5) are arranged oppositely in a cross shape,

the integrated clamping device (1) comprises a clamping disc (11), a clamping strip (12) and a terminal crimping head (13), wherein the clamping disc (11) and the terminal crimping head (13) are respectively positioned at two ends of the clamping strip (12), a first clamping point (6) is formed at the contact part of the clamping strip (12) and the heating rod (2), a second clamping point (7) is formed at the contact part of the spring type clamping device (5) and the heating rod (2),

the first clamping point (6) is close to the conductive end of the heating rod (2), and the second clamping point (7) is close to the middle of the heating rod (2).

2. The clamping device according to claim 1, characterized in that the clamping plate (11), the clamping strip (12) and the terminal crimping head (13) are integrally connected, the clamping strip (12) is of a sheet structure, the clamping strip (12) is provided with a clamping part (124), the clamping part (124) is close to the clamping plate (11), the clamping part (124) is provided with a clamping groove (125), the clamping part (124) faces the heating rod (2), and the clamping groove (125) is clamped on the outer side of the heating rod (2).

3. The clamping device according to claim 2, wherein the clamping strip (12) has a first connecting strip (121) and a second connecting strip (122) connected adjacent to the first connecting strip (121), an included angle is formed between the first connecting strip (121) and the second connecting strip (122), the clamping portion (124) is formed at the connection position of the first connecting strip (121) and the second connecting strip (122), and the clamping portion (124) protrudes towards the object to be clamped.

4. Clamping device according to claim 2, characterized in that the distance between the first clamping point (6) and the second clamping point (7) is larger than the distance between the second clamping point (7) and the conductive end of the heating rod (2) and smaller than half the length of the heating rod (2).

5. Clamping device according to claim 4, characterized in that perpendicular to the holding strip (12)

In the cross-sectional direction of the said holding groove (125) is V-shaped,

facing the clamping groove (125), the direction of the groove line of the clamping groove (125) is consistent with the longitudinal direction of the holding strip (12).

6. A holding device according to claim 4, wherein the holding groove (125) is formed by punching in the width direction of the holding strip (12),

the width of the clamping groove (125) is smaller than the width of the clamping strip.

7. The clamping device according to claim 4, characterized in that the opening angle of the clamping groove (125) is an obtuse angle.

8. The clamping device as recited in claim 7, characterized in that the opening angle of the clamping groove (125) is 100-150 °.

9. A clamping device according to claim 3, characterized in that the clamping bar (12) further has a third connecting bar (123), one end of the third connecting bar (123) being connected to the second connecting bar (122) and the other end being connected to the terminal crimping head (13).

10. Clamping device according to claim 1, characterized in that the clamping plate (11), the clamping strip (12) and the terminal crimping head (13) are integrally stamped and formed.