CN220332882U - Install in parking switch that drum was stopped - Google Patents

Abstract

The utility model relates to the technical field of electric vehicle parts, in particular to a parking switch arranged on a drum brake. Including base and rotation locate the handle on the base, still pass on the base and be equipped with towards the waterproof outage switch that the handle set up and stop work when contradicting with the handle, keep away from on the base and set up the handle one side and still fixedly be equipped with parking switch, parking switch is including the parking support of locating the base one side and locate the parking button that can press after rotating the handle in the parking support, parking button presses back one end to stretch out the base and offsets with the handle, still be equipped with between parking button and the base and make parking button break away from the reset spring that the handle contradicted and reset. The novel electric control device is simple in installation, can realize functions in a mechanical mode without additionally arranging a wire harness, is convenient to operate, is stable when being in contact with a handle and is not easy to be blocked when being reset, and the uncontrolled galloping caused by manual mistaken touching of a speed regulating handle is effectively avoided.

Description

Install in parking switch that drum was stopped

Technical Field

The utility model relates to the technical field of electric vehicle parts, in particular to a parking switch arranged on a drum brake.

Background

At present, when an operator parks a car by using the practical process of the electric car brake crank, the operator often presses the brake handle and opens the two feet, the brake handle is released, the brake handle can automatically reset, at the moment, the electric car is not protected by braking, if the operator or a passenger touches the speed regulating crank by mistake, the car can easily flee out to cause runaway, especially when the car carries a child, the child imitates the adult to rotate the speed regulating crank because of curiosity, thereby causing the car to be out of control and causing injury to the person, and therefore, the parking switch is needed to be used for preventing the user from causing misoperation.

The utility model patent application number 202120901051.7 of the applicant discloses a brake lever with a parking switch, wherein an operation button is arranged on the parking switch in a sliding manner, one end of the operation button is an operation end, the other end of the operation button penetrates through the parking switch to be arranged and is provided with a retaining block, the retaining block is abutted against a base of the brake lever to form a limit for resetting the handle, a reset spring for resetting the operation button to enable the retaining block to be separated from the handle is abutted against the bottom surface of the parking switch, a positioning ring is arranged on the side wall of the base of the brake lever in a circumferential manner, the positioning ring is hooked on the side wall of the brake lever to form a limit for separating the positioning ring, the parking switch comprises a bottom plate and a housing, a clamping hook and a clamping groove are arranged between the bottom plate and the housing, the clamping hook and the clamping groove are clamped with each other to be fixedly connected with the bottom plate and the housing, the operation button is arranged on the housing in a sliding manner, the retaining block is penetrated out of the housing by the bottom plate, and the reset spring is abutted between the bottom plate and the operation button.

This patent has the following drawbacks:

1. the clamping hook and the clamping groove arranged between the bottom plate and the housing can sometimes be blocked due to internal fine scraps or sundries, so that the normal use of the parking switch is influenced.

2. The reset operation button needs to be sequentially provided with the reset spring, the bottom plate and the retaining block and then provided with the housing, and finally the bottom plate and the base are connected through bolts to complete fixation, so that the installation is complex.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art, and provides the parking switch installed on the drum brake, which is simple to install, can realize functions in a mechanical mode without additionally arranging a wire harness, is convenient to operate, is stable when being abutted with a handle, is not easy to be blocked when being reset, and effectively avoids out-of-control galloping caused by manual mistaken touching of a speed regulating handle.

The utility model adopts the following technical scheme for realizing the purposes: the utility model provides an install parking switch of drum brake, includes the base and rotates the handle of locating on the base, the handle rotates the end and still is equipped with reset torsion spring of reset handle, still pass on the base and be equipped with the waterproof outage switch that sets up towards the handle, waterproof outage switch is unoperated state when the handle contradicts with waterproof outage switch, keep away from on the base and set up the parking switch that handle one side still is fixed to be equipped with integrative turning shaping, parking switch is including the parking support of fixed locating base one side and locate in the parking support and can press the parking button after rotating the handle, the parking support pierces the button groove that is equipped with and places the parking button, the one end is sunk in the button inslot after the parking button is pressed, and the other end stretches out the base and offsets with the handle, still be equipped with between parking button and the base and make parking button break away from the reset spring that the handle contradicted and reset.

By adopting the technical scheme, after the handle rotates, the interference waterproof power-off switch stops, the waterproof power-off switch is in a working state at this moment, the motor of the electric vehicle stops running, one end of the parking switch is pressed again to extend out of the base and fix the handle at the existing position, the motor of the electric vehicle is in a stop state, therefore, no matter how the speed regulating handle is rotated, the electric vehicle cannot be driven to run away, the electric vehicle is required to recover the power-on state, the handle is only required to be pressed again, the interference between the handle and the parking button stops, the parking button is reset to the initial position by the reset spring, the handle is released again at this moment, the reset torsion spring at the rotating end of the handle drives the handle to rebound to reset and interfere with the waterproof power-off switch, the power-on state is recovered at this moment, compared with the prior parking switch, the parking switch has fewer parts, is simpler and can be directly installed on the base, the disassembly and installation are very convenient, and the parking button is set up because the internal structure is simple, the parking button is not easy to be blocked by internal fine dust or sundries, the normal use of the parking switch is influenced, and the parking switch is turned and formed.

A parking switch mounted to the drum brake may be further configured to: the parking button is provided with an annular projection which abuts against the limiting step and prevents the parking button from being ejected out of the parking support by the reset spring.

By adopting the technical scheme, the parking button can not be ejected out of the button groove by the reset spring all the time by the limit step, when the reset spring drives the parking button to reset, the annular protruding block on the parking button can be propped against the limit step when being pushed to the uppermost side, so that the parking button is prevented from being ejected out, and the parking button is more reliable to use.

A parking switch mounted to the drum brake may be further configured to: the lower part of the annular convex block is also provided with a limit seat with the diameter smaller than that of the annular convex block and the outside of the limit seat is sleeved with a reset spring, and one end of the reset spring is propped against the annular convex block, and the other end of the reset spring is propped against the base.

By adopting the technical scheme, the reset spring is arranged below the annular convex block, the other end of the reset spring is propped against the base and enables the parking button to rebound to the initial position, the limiting seat can be sleeved with the reset spring, the reset spring is always arranged between the annular convex block and the base and cannot be easily loosened, and the stability of the whole product is improved.

A parking switch mounted to the drum brake may be further configured to: the parking pin is characterized in that a parking pin with the diameter smaller than that of the limiting seat and passing through the base and propped against the handle after being pressed is further arranged below the limiting seat, and a parking pin passing hole with the diameter identical to that of the parking pin is formed in the base.

By adopting the technical scheme, because the diameter of the limiting lug is larger than that of the parking pin, the limiting lug cannot pass through the parking pin passing hole, the length of the limiting lug is the same as the pressing depth of the parking button, the contact area between the parking pin and the positioning ring is larger than that between the parking pin and the handle, and the cylindrical design is not too sharp, so that the handle is knocked.

A parking switch mounted to the drum brake may be further configured to: the annular protruding block, the limiting seat and the parking pin are integrally turned and formed on the parking button.

By adopting the technical scheme, the parking button is integrally turned and formed, has better strength and service life, and reduces the installed parts, so that the parking button can not be scattered due to overlarge force when in use, and the whole parking button loses the pressing effect.

A parking switch mounted to the drum brake may be further configured to: the parking support is also provided with a fixing device which is used for fixing two opposite ends of the parking support on the base in an inclined way.

By adopting the technical scheme, the parking support is firmly fixed on the base through the opposite fixing mode by the fixing device, one end sequentially penetrates through the parking support and the base from the direction of the parking support and is fixed, and the opposite direction penetrates through the direction of the base and penetrates into the parking support, so that two ends of the parking support can be firmly fixed, one end of the parking support can be fixed from the inside of the base, and the other end is fixed after the position angle is adjusted.

A parking switch mounted to the drum brake may be further configured to: the fixing device comprises a self-tapping screw with one end penetrating from the parking support and fixed with the base and a countersunk screw with one end sinking into the base and the other end penetrating through the base and fixedly connected with the parking support, wherein a first fixing hole for installing the countersunk screw and a second fixing hole for installing the self-tapping screw are formed in the base.

By adopting the technical scheme, the big head end of the tapping screw penetrates from the direction of the parking support and the small head end of the tapping screw is fixed in the second fixing hole on the base, the big head end of the countersunk screw is sunk in the first fixing hole of the base, the small head end of the tapping screw is inserted into the parking support and is fixed, two screws are fixed on the base through the opposite direction of the two ends, so that the two ends of the parking support are fixed on the base, the screws are fewer and are stably installed, compared with the fixation of the base plate of a patent of a comparison document, the two ends of the parking support can be directly and stably fixed through the two screws, the base plate is not required to be installed, the parking support is provided with screw holes corresponding to the corresponding positions of the first fixing hole and the second fixing hole, and the screw holes can be set into 3 screws at multiple angles to meet the installation of different angles, and accordingly the screws corresponding to the positions of the countersunk screws are installed.

A parking switch mounted to the drum brake may be further configured to: the parking screw cap sinking into the parking bracket is also covered above the tapping screw.

By adopting the technical scheme, because the tapping screw is installed into the parking support and still has one section exposed outside, the parking screw cap just covered on the hole site is installed on the hole site, so that the whole parking support is more integrated, and when the tapping screw cap is required to be detached, the parking screw cap is directly covered on the tapping screw, so that the parking screw cap can be directly pulled out from the parking support, and the tapping screw is released.

A parking switch mounted to the drum brake may be further configured to: the parking screw cap is a rubber cap.

By adopting the technical scheme, the parking screw cap is arranged into the rubber cap, so that the self-tapping screw can be prevented from directly contacting with air to cause screw rust, a section of screw cap is exposed from outside after the self-tapping screw is installed into the parking bracket, and the self-tapping screw is covered and more attractive by using the rubber cap.

The beneficial effects of the utility model are as follows: the parts are few, the installation is convenient, the locking is difficult, the outage parking can be accomplished only by pressing the handle and pressing the parking button, the parking button can be driven to reset by the reset spring by pressing the handle again, and the handle can also be driven to be in contact with the waterproof outage switch by the reset torsion spring so as to drive the vehicle to run by electrifying, so that the use is reliable.

The utility model is described in further detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a perspective view of fig. 1 according to an embodiment of the present utility model.

Fig. 2 is an exploded view of fig. 1 in accordance with an embodiment of the present utility model.

Fig. 3 is an exploded view of a parking switch according to an embodiment of the present utility model.

Fig. 4 is a schematic perspective view of a parking bracket according to an embodiment of the present utility model.

Fig. 5 is a perspective view of fig. 2 according to an embodiment of the present utility model.

Fig. 6 is a schematic diagram illustrating a state of the handle and the parking button after being pressed in fig. 5 according to an embodiment of the present utility model.

FIG. 7 is a schematic view of the internal structure of FIG. 5 with the handle removed, in accordance with an embodiment of the present utility model.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the figure: 1. a base; 2. a handle; 3. a reset torsion spring; 4. a waterproof power-off switch; 11. a parking switch; 12. a parking bracket; 13. a park button; 20. a fixing device; 21. self-tapping screw; 22. countersunk head screws; 30. a first fixing hole; 31. a second fixing hole; 32. parking screw cap; 40. a button groove; 41. a limit step; 42. an annular bump; 43. a limit seat; 44. parking pin; 45. parking pin passing holes; 50. and a return spring.

Examples: the parking switch that is shown in fig. 1, 5 and 6 is installed in drum brake, including base 1 and rotation locate handle 2 on the base 1, handle 2 rotates the end and still is equipped with reset torsion spring 3 of reset handle 2, still pass on the base 1 and be equipped with waterproof outage switch 4 that sets up towards handle 2, waterproof outage switch 4 is in the unenergized state when handle 2 contradicts with waterproof outage switch 4, keep away from setting up handle 2 one side on the base 1 and still fixedly be equipped with parking switch 11, parking switch 11 is including fixing the parking support 12 that locates the base 1 one side and locating in the parking support 12 and can press the parking button 13 after rotating handle 2, and parking button 13 direct mount does not influence the basic function of original switch on base 1 to adopt mechanical type principle need not to increase extra line connection more durable, life is longer, uses the handle once more after the start-up and can accomplish the circular telegram.

As shown in fig. 4, the parking support 12 is penetrated and provided with a button slot 40 for placing the parking button 13, the opening of one end of the button slot 40 away from the base 1 is provided with a limit step 41, as shown in fig. 3, a reset spring 50 for promoting the parking button 13 to stop abutting against the handle 2 is further arranged between the parking button 13 and the base 1, the parking button 13 is provided with an annular protruding block 42 which abuts against the limit step 41 and prevents the parking button 13 from being ejected out of the parking support 12 by the reset spring 50, the lower part of the annular protruding block 42 is further integrally provided with a limit seat 43 with the diameter smaller than the annular protruding block 42 and the outside is sleeved with the reset spring 50, the limit seat 43 can be sleeved with the reset spring 50 and is prevented from being ejected out of the limit seat 43 after the reset spring 50 is compressed, as shown in fig. 2 and fig. 6, a parking pin 44 with the diameter smaller than the limit seat 43 and passing through the base 1 and abutting against the handle 2 is further integrally arranged below the limit seat 43, as shown in fig. 3, one end of the reset spring 50 abuts against the other end of the annular protruding block 42 against the base 1, as shown in fig. 6, the parking button 13 is pressed into the annular protruding seat 40, the parking button is stretched out of the annular protruding seat is more than the parking button 1, the parking button is required, the service life is prolonged, and the parking support is more than needed, and the service life is prolonged, and the parking support is more is easy to be shaped.

As shown in fig. 2, the parking support 12 is further provided with a fixing device 20 for fixing two diagonally opposite ends of the parking support 12 on the base 1, as shown in fig. 3 and 7, the fixing device 20 comprises self-tapping screws 21, one end of which penetrates from the parking support 12 and is fixed with the base 1, and countersunk screws 22, one end of which penetrates into the base 1, the other end of which penetrates through the base 1 and is fixedly connected with the parking support 12, the base 1 is provided with a first fixing hole 30 for installing the countersunk screws 22 and a second fixing hole 31 for installing the self-tapping screws 21, the parking support is also provided with screw holes corresponding to the positions of the first fixing hole 30 and the second fixing hole 31, and the screw holes can be installed at different angles in a multi-angle mode at one side to meet the installation of different angles, so as to install screws corresponding to the positions of the countersunk screws 22.

As shown in fig. 3, a parking screw cap 32 sunk into the parking bracket 12 is further covered above the tapping screw 21, the parking screw cap 32 is a rubber cap, the tapping screw 21 can be prevented from being directly contacted with air to cause screw rust by arranging the parking screw cap 32 into the rubber cap, and the tapping screw 21 can be covered to enable the whole appearance to be more attractive.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be stably included in the protection scope of the present utility model.

Claims (9)

1. The utility model provides an install in parking switch that drum was stopped, includes base (1) and rotates handle (2) of locating on base (1), handle (2) rotate end still be equipped with reset torsion spring (3) of reset handle (2), still pass on base (1) and be equipped with waterproof outage switch (4) that set up towards handle (2), waterproof outage switch is unoperated state when the handle contradicts with waterproof outage switch, its characterized in that: the parking switch is characterized in that a parking switch (11) is fixedly arranged on one surface of the base (1) far away from the handle (2), the parking switch (11) comprises a parking support (12) fixedly arranged on one surface of the base (1) and a parking button (13) which is arranged in the parking support (12) and can be pressed after the handle (2) is rotated, the parking support (12) penetrates through a button groove (40) for placing the parking button (13), one end of the parking button (13) is immersed in the button groove (40) after being pressed, the other end of the parking button extends out of the base (1) and is propped against the handle (2), and a reset spring (50) for enabling the parking button (13) to be separated from the handle (2) and reset is further arranged between the parking button (13) and the base (1).

2. A drum brake mounted park switch as claimed in claim 1 wherein: the parking button is characterized in that a limiting step (41) is arranged at the opening of one end, far away from the base (1), of the button groove (40), and an annular protruding block (42) which is propped against the limiting step (41) and prevents the parking button (13) from being popped up by a reset spring (50) from the parking support (12) is integrally arranged on the parking button (13).

3. A drum brake mounted park switch as claimed in claim 2 wherein: and a limiting seat (43) with the diameter smaller than that of the annular protruding block (42) and provided with a return spring (50) in a sleeved mode is arranged below the annular protruding block (42), and one end of the return spring (50) abuts against the annular protruding block (42) while the other end abuts against the base (1).

4. A drum brake mounted park switch as claimed in claim 3 wherein: the parking pin (44) with the diameter smaller than that of the limiting seat (43) and penetrating through the base (1) and propped against the handle after being pressed is further arranged below the limiting seat (43), and a parking pin passing hole (45) with the diameter identical to that of the parking pin (44) is formed in the base (1).

5. A drum brake mounted park switch as claimed in any one of claims 2-4 wherein: the annular protruding block (42), the limiting seat (43) and the parking pin (44) are integrally turned and formed on the parking button (13).

6. The drum brake mounted park switch of claim 5, wherein: the parking support (12) is also provided with a fixing device (20) for fixing the two opposite ends of the parking support (12) on the base (1).

7. The drum brake mounted park switch of claim 6, wherein: the fixing device (20) comprises a self-tapping screw (21) with one end penetrating from the parking support (12) and fixed with the base (1) and a countersunk head screw (22) with one end sinking into the base (1) and the other end penetrating through the base (1) and fixedly connected with the parking support (12), wherein a first fixing hole (30) for installing the countersunk head screw (22) and a second fixing hole (31) for installing the self-tapping screw (21) are formed in the base (1).

8. The drum brake mounted park switch of claim 7, wherein: a parking screw cap (32) sunk into the parking bracket (12) is also covered above the tapping screw (21).

9. The drum brake mounted park switch of claim 8, wherein: the parking screw cap (32) is a rubber cap.