CN220748400U - Torsion spring mounting structure of electronic injection throttle valve position sensor - Google Patents
Torsion spring mounting structure of electronic injection throttle valve position sensor Download PDFInfo
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- CN220748400U CN220748400U CN202322546102.0U CN202322546102U CN220748400U CN 220748400 U CN220748400 U CN 220748400U CN 202322546102 U CN202322546102 U CN 202322546102U CN 220748400 U CN220748400 U CN 220748400U
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- strip
- shaped groove
- torsion spring
- positioning
- mounting structure
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- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a torsion spring mounting structure of an electronic injection throttle valve position sensor, and belongs to the technical field of electronic injection. It has solved the inconvenient problem of current torsional spring installation. The utility model discloses a position sensor, which comprises a shell and a cylinder body, wherein a circular cavity with an upward cavity opening is formed in the shell; the first length of the strip-shaped groove extends along the radial direction of the circular cavity, and one end of the strip-shaped groove extends to the inner side wall of the circular cavity; the upper end of the torsion spring is a first positioning strip matched with the first strip-shaped groove, the lower end of the torsion spring is a second positioning strip matched with the second strip-shaped groove, the first positioning strip and the second positioning strip are both horizontally arranged and extend along the radial direction of the circular cavity in length, and the first positioning strip and the second positioning strip are respectively clamped into the first strip-shaped groove and the second strip-shaped groove. The utility model is convenient for the installation of the torsion spring.
Description
Technical Field
The utility model belongs to the technical field of electronic injection, and relates to an electronic injection throttle valve position sensor, in particular to a torsion spring mounting structure of the electronic injection throttle valve position sensor.
Background
The electronic injection throttle valve body assembly is a valve for controlling the air suction amount of the engine, the gasoline engine fully and effectively mixes fuel and air according to a certain proportion during operation, the fuel and the air are burnt and exploded through timing ignition, and then energy generated by the explosion is transmitted outwards through a crankshaft, wherein various sensors in the electronic injection throttle valve body assembly play an important role in order to reach the optimal air-fuel ratio.
The position sensor is an important component of an electronic injection throttle valve, such as a throttle valve assembly position sensor (application number: 201922249727.4) in an electronic injection system proposed by the applicant, and comprises a shell, a circuit board horizontally arranged in the shell and a rotary drum vertically and rotatably arranged in the shell, wherein a torsion spring is sleeved outside the rotary drum, two ends of the torsion spring are fixedly connected with the shell and the rotary drum respectively, a circular groove with a notch right opposite to the circuit board is arranged in the upper end of the rotary drum, a magnetic block is arranged in the circular groove, a Hall chip for detecting the rotation angle of the magnetic block is arranged on the circuit board, and the electronic injection throttle valve is characterized in that the circular groove is formed by a groove side wall and a groove bottom wall, the magnetic block is in a circular ring shape matched with the circular groove, the magnetic block is tightly matched and connected with the rotary drum, and the lower end surface of the magnetic block is propped against the groove bottom wall; the heat dissipation groove is characterized in that the bottom wall of the groove is provided with a heat dissipation groove in a strip shape, the length of the heat dissipation groove extends along the radial direction of the round groove, the inner hole of the magnetic block is opposite to the heat dissipation groove, the side wall of the groove is provided with two heat dissipation grooves I in strip shapes, the length of each heat dissipation groove I extends along the axial direction of the round groove, the upper end of each heat dissipation groove I is in an opening shape, and the lower ends of the two heat dissipation grooves I extend to be communicated with the two ends of the heat dissipation groove respectively.
In actual products, two jacks for clamping two ends of the torsion spring are respectively arranged on the shell and the rotary drum, so that the torsion spring is positioned, but the mode has a problem: during installation, the rod body needs to be pulled manually to form an avoidance space, when the end part of the torsion spring is aligned with the jack, the external force is removed to enable the end part of the torsion spring to be clamped into the jack, and the process is more in steps, and the manual operation is seriously hindered due to extremely limited space of the shell.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a torsion spring mounting structure of an electronic injection throttle valve position sensor, which is convenient to mount.
The aim of the utility model can be achieved by the following technical scheme: the torsion spring mounting structure of the electronic injection throttle valve position sensor is characterized in that the mounting structure comprises a first strip-shaped groove horizontally formed at the edge of the cavity opening of the circular cavity and a second strip-shaped groove vertically arranged on the outer side wall of the lower end of the cylinder; the length of the first strip-shaped groove extends along the radial direction of the circular cavity, and one end of the first strip-shaped groove extends to the inner side wall of the circular cavity; the upper end of the torsion spring is a first positioning strip matched with the first strip-shaped groove, the lower end of the torsion spring is a second positioning strip matched with the second strip-shaped groove, the first positioning strip and the second positioning strip are both horizontally arranged and extend along the radial direction of the circular cavity in length, and the first positioning strip and the second positioning strip are respectively clamped into the first strip-shaped groove and the second strip-shaped groove.
When the positioning device is installed, the torsion spring is sleeved into the cylinder body and is pressed downwards, the second positioning strip is firstly contacted with the outer side wall of the cylinder body to shrink inwards in the downward moving process of the torsion spring, and when the second positioning strip is aligned with the second strip-shaped groove, the second positioning strip is reset and clamped into the second strip-shaped groove under the action of the spring; and then the cylinder with the torsion spring is arranged in the circular cavity, the cylinder is rotated to enable the first positioning strip to be aligned with the first strip-shaped groove, and then the first positioning strip is clamped into the first strip-shaped groove by pressing down the torsion spring, so that the torsion spring is installed.
The first and second strip grooves for clamping the two ends of the torsion spring are respectively formed in the edge of the circular cavity and the outer side wall of the lower end of the cylinder, so that the torsion spring can be installed only by pressing the torsion spring downwards in actual assembly, the whole installation process can be effectively free of the constraint of the installation space, and the operation steps are few, so that the device has the advantages of convenience in installation, easiness and the like.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the positioning strip is bent downwards to form the bent part, the bent part is in a strip shape and is vertically arranged, the bottom wall of the first strip-shaped groove is vertically provided with the positioning hole matched with the bent part, and the bent part is clamped in the positioning hole, so that the connection strength of the torsion spring and the shell is further enhanced, and the torsion spring is stably positioned.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the bottom of the second strip-shaped groove is closed, and the second positioning strip is pressed on the second bottom wall of the second strip-shaped groove, so that the torsion spring can move in place on the cylinder body at one time, the torsion spring and the cylinder body can be synchronously mounted into the shell, the mounting step is further simplified, and the mounting is convenient.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the second strip-shaped groove is horizontally penetrated, and the second positioning strip extends into the inner cavity of the cylinder body through the second strip-shaped groove, so that the contact area between the second positioning strip and the second strip-shaped groove is maximized, and the connection strength of the torsion spring and the cylinder body is further enhanced.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the upper end of the strip-shaped groove II is internally provided with the strip-shaped guide block which is obliquely upwards arranged relative to the cylinder body, and the upper end of the guide block extends to the top wall of the strip-shaped groove II. And a guide block which is arranged obliquely upwards is formed in the upper end of the second strip-shaped groove and is used for positioning the second strip to be clamped and guided, so that the assembly process is smoother.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the flange with the approximately L-shaped axial section is formed on the outer wall of the lower end of the cylinder body, an annular groove with the shape and the size matched with the torsion spring is formed between the flange and the outer side wall of the cylinder body, and the lower part of the torsion spring is positioned in the annular groove, so that the positioning stability of the torsion spring is further enhanced.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the edge of the cavity opening of the circular cavity is provided with the convex ring which is coaxial with the circular cavity, the convex ring consists of the circular arc section and the positioning section which is approximately U-shaped, and the inner hole of the positioning section is the strip-shaped groove I. By adopting the design, the depth of the strip-shaped groove can be greatly increased on the premise of ensuring the integral strength of the circular cavity, the contact area between the strip-shaped groove and the torsion spring is increased, and the positioning strength of the torsion spring is further enhanced.
In the torsion spring mounting structure of the electronic injection throttle valve position sensor, the rubber ring with the shape and the size matched with the convex ring is sleeved outside the convex ring. When in actual use, the cover plate is also fixed in the shell and pressed on the rubber ring to stably seal the circular cavity opening.
Compared with the prior art, the torsion spring mounting structure of the electronic injection throttle valve position sensor has the following advantages:
1. the first and second strip grooves for clamping the two ends of the torsion spring are respectively formed in the edge of the circular cavity and the outer side wall of the lower end of the cylinder, so that the torsion spring can be installed only by pressing the torsion spring downwards in actual assembly, the whole installation process can be effectively free of the constraint of the installation space, and the operation steps are few, so that the device has the advantages of convenience in installation, easiness and the like.
2. The bottom of the second strip-shaped groove is closed, and the second positioning strip is pressed on the second bottom wall of the second strip-shaped groove, so that the torsion spring can move in place on the cylinder body at one time, the torsion spring and the cylinder body can be synchronously installed into the shell, the installation steps are further simplified, and the installation is convenient.
Drawings
Fig. 1 is a perspective view of a torsion spring mounting structure.
FIG. 2 is a schematic cross-sectional view of the torsion spring mounting structure.
Fig. 3 is a schematic structural view of the housing.
Fig. 4 is a schematic structural view of the torsion spring.
Fig. 5 is a schematic structural view of the cylinder.
In the figure, 1, a shell; 1a, a circular cavity; 1b, a guide ring; 1c, a first strip groove; 1d, positioning holes; 1f, a convex ring; 1f1, an arc section; 1f2, a positioning section; 2. a cylinder; 2a, a strip-shaped groove II; 2b, a flange; 2c, guiding blocks; 3. a torsion spring; 3a, positioning strip I; 3b, positioning strips II; 3c, bending parts; 4. a rubber ring.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 and 2, the electronic injection throttle position sensor comprises a shell 1 and a cylinder body 2, wherein a circular cavity 1a with an upward cavity opening is formed in the shell 1, and the cylinder body 2 is vertically arranged in the circular cavity 1a and is in running fit with the bottom wall of the circular cavity 1 a. In actual products, through holes vertically penetrate through the bottom wall of the circular cavity 1a, magnetic blocks are fixed in the upper end of the cylinder body 2, and the lower end of the cylinder body 2 is inserted into the through holes. Further, a guide ring 1b is formed on the bottom wall of the circular cavity 1a, the guide ring 1b is coaxial with the cylinder body 2, an annular groove matched with the guide ring 1b is formed on the cylinder body 2, and the guide ring 1b is inserted into the annular groove, so that the cylinder body 2 is stably and rotatably arranged in the circular cavity 1 a.
The torsion spring 3 is sleeved outside the cylinder body 2, and the torsion spring mounting structure of the electronic spray throttle valve position sensor comprises a first strip-shaped groove 1c horizontally formed at the edge of the cavity opening of the circular cavity 1a and a second strip-shaped groove 2a vertically formed on the outer side wall of the lower end of the cylinder body 2. The length of the first strip-shaped groove 1c extends along the radial direction of the circular cavity 1a, one end of the first strip-shaped groove 1c extends to the inner side wall of the circular cavity 1a, and at the moment, the two ends of the first strip-shaped groove are respectively opened and closed; the length of the second strip-shaped groove 2a extends along the axial direction of the cylinder body 2, and the top and the bottom of the second strip-shaped groove 2a are closed. As shown in fig. 1 to 5, the upper end of the torsion spring 3 is a first positioning strip 3a matched with the first strip-shaped groove 1c, the lower end of the torsion spring 3 is a second positioning strip 3b matched with the second strip-shaped groove 2a, the first positioning strip 3a and the second positioning strip 3b are horizontally arranged and extend along the radial direction of the circular cavity 1a, the first positioning strip 3a is clamped into the first strip-shaped groove 1c and is pressed on the bottom wall of the first strip-shaped groove 1c, and the second positioning strip 3b is clamped into the second strip-shaped groove 2a and is pressed on the bottom wall of the second strip-shaped groove 2a.
When the positioning device is installed, the torsion spring 3 is sleeved into the cylinder body 2 and is pressed downwards, the positioning strip II 3b is firstly contacted with the outer side wall of the cylinder body 2 to shrink inwards in the downward moving process of the torsion spring 3, and when the positioning strip II 3b is aligned with the strip-shaped groove II 2a, the positioning strip II 3b is reset and clamped into the strip-shaped groove II 2a under the action of the spring; and then the cylinder body 2 with the torsion spring 3 is arranged in the circular cavity 1a, the cylinder body 2 is rotated to enable the first positioning strip 3a to be aligned with the first strip-shaped groove 1c, and then the torsion spring 3 is pressed down to enable the first positioning strip 3a to be clamped into the first strip-shaped groove 1c, so that the installation of the torsion spring 3 is completed.
The first strip-shaped groove 1c and the second strip-shaped groove 2a for clamping in the two ends of the torsion spring 3 are respectively formed in the edge of the circular cavity 1a and the outer side wall of the lower end of the cylinder body 2, so that the torsion spring 3 can be installed only by downwards pressing the torsion spring 3 in actual assembly, the whole installation process can be effectively free of the constraint of an installation space, and the operation steps are extremely few, so that the device has the advantages of convenience in installation, easiness and the like.
Further, as shown in fig. 1, 3 and 4, the first positioning strip 3a is bent downwards to form a bent portion 3c, the bent portion 3c is in a strip shape and is vertically arranged, a positioning hole 1d matched with the bent portion 3c is vertically formed in the bottom wall of the first strip-shaped groove 1c, and the bent portion 3c is clamped in the positioning hole 1d, so that the connection strength of the torsion spring 3 and the housing 1 is further enhanced, and the torsion spring 3 is stably positioned.
As shown in fig. 2 and 5, the second strip-shaped groove 2a is arranged horizontally in a penetrating manner, and the second positioning strip 3b extends into the inner cavity of the cylinder 2 through the second strip-shaped groove 2a, so that the contact area between the second positioning strip 3b and the second strip-shaped groove 2a is maximized, and the connection strength of the torsion spring 3 and the cylinder 2 is further enhanced. Further, a guide block 2c having a long strip shape is formed in the upper end of the second bar-shaped groove 2a, the guide block 2c is disposed obliquely upward with respect to the cylinder 2, and the upper end of the guide block 2c extends to the top wall of the second bar-shaped groove 2a. And a guide block 2c which is arranged obliquely upwards is formed in the upper end of the second strip-shaped groove 2a and is used for positioning the second strip 3b to be clamped and guided, so that the assembly process is smoother.
In order to further strengthen the positioning of the torsion spring 3, the axial flange 2b with an approximately L-shaped section is integrally formed on the outer wall of the lower end of the cylinder body 2, an annular groove with the shape and the size matched with those of the torsion spring 3 is formed between the flange 2b and the outer side wall of the cylinder body 2, and the lower part of the torsion spring 3 is positioned in the annular groove.
In this embodiment, the first molding mode of the first bar-shaped groove 1c is as follows: as shown in fig. 1 and 3, a convex ring 1f coaxial with the circular cavity 1a is formed at the edge of the cavity opening of the circular cavity 1a, the convex ring 1f is composed of a circular arc section 1f1 and a positioning section 1f2 which is approximately in a U shape, two ends of the positioning section 1f2 are respectively connected with two ends of the circular arc section 1f1, and an inner hole of the positioning section 1f2 is the first strip-shaped groove 1c. By adopting the design, on the premise of ensuring the integral strength of the circular cavity 1a, the depth of the first strip-shaped groove 1c can be greatly increased, the contact area between the first strip-shaped groove and the torsion spring 3 is increased, and the positioning strength of the torsion spring 3 is further enhanced.
In the actual product, the outer sleeve of the convex ring 1f is provided with a rubber ring 4 which is matched with the convex ring 1f in shape and size. When the sealing device is used, the cover plate is also fixed in the shell and pressed on the rubber ring 4 to stably seal the cavity opening of the circular cavity 1 a.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. The torsion spring mounting structure of the electronic injection throttle valve position sensor is characterized in that the mounting structure comprises a first strip-shaped groove (1 c) horizontally formed at the edge of a cavity opening of the circular cavity (1 a) and a second strip-shaped groove (2 a) vertically arranged on the outer side wall of the lower end of the cylinder (2), wherein the circular cavity (1 a) is vertically arranged in the circular cavity (1 a) and is in running fit with the bottom wall of the circular cavity (1 a), and the torsion spring (3) is sleeved outside the cylinder (2); the length of the first strip-shaped groove (1 c) extends along the radial direction of the circular cavity (1 a), and one end of the first strip-shaped groove (1 c) extends to the inner side wall of the circular cavity (1 a); the upper end of the torsion spring (3) is a first positioning strip (3 a) matched with the first strip-shaped groove (1 c), the lower end of the torsion spring (3) is a second positioning strip (3 b) matched with the second strip-shaped groove (2 a), the first positioning strip (3 a) and the second positioning strip (3 b) are horizontally arranged and extend along the radial direction of the circular cavity (1 a), and the first positioning strip (3 a) and the second positioning strip (3 b) are respectively clamped into the first strip-shaped groove (1 c) and the second strip-shaped groove (2 a).
2. The torsion spring mounting structure of an electronic injection throttle position sensor according to claim 1, wherein the first positioning strip (3 a) is bent downward to form a bent portion (3 c), the bent portion (3 c) is in a strip shape and is vertically arranged, a positioning hole (1 d) matched with the bent portion (3 c) is vertically formed in the bottom wall of the first strip-shaped groove (1 c), and the bent portion (3 c) is clamped in the positioning hole (1 d).
3. The torsion spring mounting structure of an electronic injection throttle position sensor according to claim 1, wherein the bottom of the second bar-shaped groove (2 a) is closed, and the second positioning bar (3 b) is pressed against the bottom wall of the second bar-shaped groove (2 a).
4. The torsion spring mounting structure for the electronic injection throttle position sensor according to claim 3, wherein the second strip-shaped groove (2 a) is horizontally arranged in a penetrating mode, and the second positioning strip (3 b) extends into the inner cavity of the cylinder body (2) through the second strip-shaped groove (2 a).
5. The torsion spring mounting structure of an electronic injection throttle position sensor according to claim 4, wherein a guide block (2 c) in a long strip shape is formed in an upper end of the second strip-shaped groove (2 a), the guide block (2 c) is obliquely upward arranged relative to the cylinder (2), and an upper end of the guide block (2 c) extends to a top wall of the second strip-shaped groove (2 a).
6. The torsion spring mounting structure of the electronic injection throttle position sensor according to claim 1, wherein a flange (2 b) with an approximately L-shaped axial section is formed on the outer wall of the lower end of the cylinder body (2), an annular groove with a shape and a size matched with those of the torsion spring (3) is formed between the flange (2 b) and the outer side wall of the cylinder body (2), and the lower part of the torsion spring (3) is positioned in the annular groove.
7. The torsion spring mounting structure of an electronic injection throttle position sensor according to claim 1, wherein a convex ring (1 f) coaxial with the circular cavity (1 a) is formed at the edge of the cavity opening of the circular cavity (1 a), the convex ring (1 f) is composed of an arc section (1 f 1) and a positioning section (1 f 2) which is approximately U-shaped, and an inner hole of the positioning section (1 f 2) is the strip-shaped groove I (1 c).
8. The torsion spring mounting structure of an electronic injection throttle position sensor according to claim 7, wherein the collar (1 f) is externally provided with a rubber ring (4) having a shape and a size matching those of the collar (1 f).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322546102.0U CN220748400U (en) | 2023-09-19 | 2023-09-19 | Torsion spring mounting structure of electronic injection throttle valve position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322546102.0U CN220748400U (en) | 2023-09-19 | 2023-09-19 | Torsion spring mounting structure of electronic injection throttle valve position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748400U true CN220748400U (en) | 2024-04-09 |
Family
ID=90568465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322546102.0U Active CN220748400U (en) | 2023-09-19 | 2023-09-19 | Torsion spring mounting structure of electronic injection throttle valve position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220748400U (en) |
-
2023
- 2023-09-19 CN CN202322546102.0U patent/CN220748400U/en active Active
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