Bidirectional force measuring system for automobile door lock

Abstract

The utility model relates to the technical field of detection systems, in particular to a bidirectional force measuring system of an automobile door lock, which comprises a movable frame; the fixed seat is arranged in the movable frame and is provided with a mounting position for mounting a lock catch, and the lock assembly is mounted above the mounting position; one side of the force sensor is connected with the fixed seat, and the other side of the force sensor is connected with the movable frame; when the lock assembly and the lock catch on the installation position are in a full-locking state, the movable frame is driven to be close to or away from the fixed base, and then the force sensor detects the force in the first direction or the force in the second direction between the lock assembly and the lock catch. The bidirectional force measuring system solves the problems that an existing door lock detection device is high in cost and complex in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of detection systems, in particular to a testing system for the self-closing and ice-breaking performance of automobile door locks. Background Art

[0002] With the rapid development of the automotive industry and the innovation of some new technologies, automobiles have been improving their technology to make them more intelligent and electrified. Car door locks are an important part of the car body and have also gone through a process from simple to intelligent.

[0003] With the improvement of intelligent interior decoration, the automatic closing function of car doors is increasingly concerned and loved by the majority of users and major OEMs. As the locking mechanism of car doors, the reliability of self-closing door locks is directly related to the locking effect of car doors and driving safety. Therefore, it is necessary to comprehensively consider various working conditions and test and evaluate self-closing door locks from the life cycle of the whole vehicle.

[0004] Currently, most companies on the market use two force sensors to test the self-priming force and ice-breaking force of car doors, which results in a larger size and higher cost for the entire device. Utility Model Content

[0005] The main purpose of the utility model is to provide a bidirectional force measuring system for a car door lock, aiming to solve the problems of high cost and complex structure of the existing door lock detection device.

[0006] In order to solve the above problems, the utility model proposes a two-way force measurement system for a car door lock, wherein the door lock is composed of a lock assembly and a lock catch, and is characterized in that it includes:

[0007] Mobile racks;

[0008] A fixed seat is arranged in the mobile frame, and has a mounting position for mounting a lock catch. The lock assembly is installed above the mounting position. The mounting position of the lock assembly is independent of the bidirectional force measuring mechanism and is associated with the tooling body and the guide column.

[0009] A force sensor, one side of which is connected to the fixed seat, and the other side of which is connected to the movable frame;

[0010] When the lock assembly and the lock buckle on the mounting position are in a fully locked state, the movable frame is driven to move closer to or farther from the fixed seat, and the force sensor detects the force in the first direction or the force in the second direction between the lock assembly and the lock buckle.

[0011] In one embodiment, it further includes: a limiting portion for guiding the moving frame to move in a straight line direction.

[0012] The limiting part is a guide column, and there are two guide columns, which are symmetrically arranged. The moving frame is slidably arranged on the two guide columns through linear bearings.

[0013] In one embodiment, the fixing seat includes: a lower base and an upper fixing block buckled on the lower base, and the installation position is located on the upper fixing block.

[0014] In one embodiment, the movable frame is a square frame structure composed of four side panels, and replaceable limiting side panels are provided on the outer sides of the side panels of the movable frame. Replacing the limiting side panels can change the output displacement of the left power unit.

[0015] In one embodiment, it further includes:

[0016] The power unit is used to drive the moving frame to move so that the force sensor applies pressure or thrust to the fixing seat.

[0017] In one embodiment, the power unit has two groups, and is respectively disposed on two sides of the moving frame.

[0018] In one embodiment, the power unit is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0019] Beneficial effects:

[0020] By setting a movable frame, setting a fixed seat in the middle of the frame, and setting a force sensor between the fixed seat and the frame, the force sensor can perform bidirectional force measurement, that is, force in the first direction and force in the second direction. Specifically, when testing the door lock, first fix the lock buckle on the installation position, then install the lock assembly above the installation position, and then lock the lock assembly on the lock buckle, so that the entire door lock is in a fully locked state, and then apply a left or right thrust to the frame, the self-priming force and ice-breaking force of the door lock can be measured by the force sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0024] The following are the descriptions of the reference numerals:

[0025] 10. Lock; 100. Moving frame; 110. Side plate; 120. Mounting plate; 121. Slot; 130. Limiting side plate; 140. Push head; 200. Fixed seat; 201. Mounting position; 210. Lower base; 220. Upper fixed block; 300. Force sensor; 400. Guide column; 410. Linear bearing; 500. Power unit. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] The utility model provides a bidirectional force measuring system for an automobile door lock, which can detect the self-closing force of the automobile lock and the ice-breaking force of the automobile lock through a single force sensor.

[0031] There are three main states of car door locks: unlocked, half-locked and fully locked. The self-priming of the car door means that when the car door is in a half-locked state, the electronic control system starts and automatically locks the car door through the self-priming mechanism, making the car in a fully locked state; ice breaking refers to a function of the car. In winter, when the car door is frozen or blocked by ice and snow, the car door can be opened through its ice breaking mode. Specifically, the electronic control system controls the car door to use an ice-breaking force of about the strength of an adult man to bounce the car door outward a certain distance, thereby facilitating passengers to manually open the car door. Due to the structure of the above-mentioned car lock self-priming and ice-breaking mechanism, there are many prior arts, and the applicant has applied for some related patents. This application is mainly aimed at the force measurement system of the car lock, so the structure of the car lock will not be described in detail.

[0032] The structure of the automobile door lock bidirectional force measuring system of the present application is described in detail through the following embodiments.

[0033] Embodiment 1:

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the door lock is mainly composed of a lock assembly and a lock buckle. When the lock assembly and the lock buckle are in a semi-locked or fully locked state, the force measuring system is used to measure the self-priming force and ice-breaking force of the lock assembly respectively.

[0035] Specifically, the force measurement system includes: a mobile frame 100;

[0036] The fixed seat 200 is arranged in the mobile frame 100, and has a mounting position 201 for mounting a lock buckle. The lock assembly (not shown in the figure) is installed above the mounting position 201, that is, there is a mounting structure for mounting the lock assembly above the fixed seat 200, and the mounting structure is independent of the bidirectional force measuring mechanism, and is connected and relatively static through the main frame and the guide column. When the fixed seat moves, the lock assembly and the lock buckle thereon can be in an unlocked state, a semi-locked state, and a fully locked state, and the fixed seat 200 and the mobile frame 100 can move relative to each other;

[0037] A force sensor 300, one side of which is connected to the fixed base 200, and the other side of which is connected to the movable frame 100;

[0038] When the lock assembly (not shown in the figure) and the lock buckle (10) on the mounting position 201 are in a fully locked state, the mobile frame 100 is driven to move closer to or farther from the fixed seat 200, and the force sensor 300 detects the force in the first direction or the force in the second direction between the lock assembly and the lock buckle.

[0039] In the present technical solution, a movable frame 100 is provided, a fixed seat 200 is provided in the middle of the movable frame 100, and a force sensor 300 is provided between the fixed seat 200 and the movable frame 100. After such a configuration, the force sensor 300 can perform bidirectional force measurement.

[0040] Specifically, when testing the door lock (the door lock consists of a lock assembly and a lock buckle), first fix the lock buckle on the installation position 201, and then install the lock assembly (not shown in the figure, the lock assembly refers to a lock structure with a pawl) above the installation position 201, and then lock the lock assembly on the lock buckle to put the entire door lock in a fully locked state. Subsequently, by applying a left or right thrust to the movable frame 100, the force sensor 300 can be used to detect the force in the first direction or the force in the second direction of the door lock. The force in the first direction and the force in the second direction are the self-priming force and ice-breaking force of the door lock.

[0041] To further explain, the force sensor 300 is installed on the right side of the fixed base. After this setting, when a rightward thrust is applied to the mobile frame 100 from the left side, since the fixed base 200 is fixed, the mobile frame 100 will move to the right relative to the fixed base 200. The mobile frame 100 has a rightward pulling force on the force sensor 300, and the force sensor 300 then applies a rightward pulling force to the fixed base 200 and the lock buckle on the fixed base 200. The measured pulling force is the ice-breaking force of the door lock.

[0042] When a leftward thrust is applied to the movable frame 100 from the right side, the movable frame 100 exerts a leftward thrust on the force sensor 300, and then the force sensor 300 exerts a leftward thrust on the fixed base 200 and the lock buckle on the fixed base 200. The measured thrust is the self-locking force (self-priming force) of the door lock.

[0043] Embodiment 2:

[0044] This embodiment is a further improvement made on the basis of the first embodiment.

[0045] In this embodiment, if Figure 1 and Figure 2 As shown, the force measuring system further includes: a limiting portion for guiding the moving frame 100 and the fixing seat 200 to move in a straight line direction.

[0046] By limiting the moving direction of the moving frame 100, the data detected by the force sensor 300 is made more accurate. Specifically, the limiting part is a guide column 400, and there are two guide columns 400, which are symmetrically arranged. The moving frame 100 is slidably arranged on the two guide columns 400 through a linear bearing 410.

[0047] Of course, the structure of the limiting portion is not unique, and the movable frame 100 can also be made to perform linear motion by adopting a slide rail.

[0048] Embodiment three:

[0049] This embodiment is a further improvement made on the basis of any of the above embodiments.

[0050] In this embodiment, if Figure 2 As shown, regarding the fixing base 200, the fixing base 200 includes: a lower base 210 and an upper fixing block 220 buckled on the lower base 210, and the installation position 201 is located on the upper fixing block 220. This arrangement facilitates the installation and removal of the lock.

[0051] Regarding the mobile frame 100, the mobile frame 100 is a square frame structure composed of four side panels 110. The side panels 110 of the mobile frame 100 are provided with a mounting plate 120 on the outside, and a slot 121 is provided on the mounting plate 120. A replaceable limiting side panel 130 is provided in the slot 121. Due to the differences in size and shape of different types of lock components, a vertically arranged mounting plate 120 is provided in order to be able to adapt. The upper end of the mounting plate 120 is provided with a slot 121. When measuring door locks of different types, the output displacement of the left power unit can be changed by replacing the limiting side panels 130 of different thicknesses. In order to fix the limiting side panel 130 on the mounting plate 120, a socket connected to the slot 121 can be provided at the side end of the mounting plate 120. A push head 140 can be installed on the socket. After the push head 140 passes through the socket and is pressed against the limiting side panel 130, the limiting side panel 130 is fixed.

[0052] Embodiment 4:

[0053] This embodiment is a further improvement made on the basis of any of the above embodiments.

[0054] In this embodiment, if Figure 1 and Figure 2 As shown, the force measuring system further includes: a power unit 500, which is used to drive the moving frame 100 to move, so that the force sensor 300 applies pressure or thrust to the fixing seat 200. By providing the power unit 500, a constant force can be applied to the moving frame 100.

[0055] Specifically, the power unit 500 has two groups, and is respectively arranged on both sides of the mobile frame 100. The power unit 500 can be a cylinder, a hydraulic cylinder or an electric cylinder. Only the power unit 500 on the right side of the mobile frame 100 is shown in the figure, and the power unit 500 on the left side of the mobile frame 100 is not shown.

[0056] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A two-way force measurement system for a car door lock, the door lock is composed of a lock assembly and a lock catch, characterized in that: include: Mobile rack (100); A fixed seat (200) is arranged in the mobile frame (100), and has a mounting position (201) for mounting the lock buckle (10), and the lock assembly is installed above the mounting position (201); A force sensor (300), one side of which is connected to the fixed seat (200), and the other side of which is connected to the movable frame (100); When the lock assembly and the lock buckle on the installation position (201) are in a fully locked state, the mobile frame (100) is driven to move closer to or farther from the fixed seat (200), and the force sensor (300) detects the force in the first direction or the force in the second direction between the lock assembly and the lock buckle.

2. A vehicle door lock bidirectional force measurement system as claimed in claim 1, characterized in that: Also includes: The limiting portion is used to guide the movable frame (100) to move in a straight line direction.

3. A bidirectional force measurement system for automobile door locks as claimed in claim 2, characterized in that: The limiting part is a guide column (400), there are two guide columns (400) which are symmetrically arranged, and the moving frame (100) is slidably arranged on the two guide columns (400) via a linear bearing (410).

4. A vehicle door lock bidirectional force measurement system as claimed in claim 1, characterized in that: The fixing seat (200) comprises: a lower base (210) and an upper fixing block (220) buckled on the lower base (210), and the installation position (201) is located on the upper fixing block (220).

5. The automobile door lock bidirectional force measurement system as claimed in claim 1, characterized in that: The movable frame (100) is a square frame structure composed of four side panels (110), and replaceable limiting side panels (130) are arranged on the outer sides of the side panels (110) of the movable frame (100).

6. A vehicle door lock bidirectional force measurement system as claimed in any one of claims 1 to 5, characterized in that: Also includes: The power unit (500) is used to drive the moving frame (100) to move, so that the force sensor (300) applies pressure or thrust to the fixing seat (200).

7. A bidirectional force measurement system for automobile door locks as claimed in claim 6, characterized in that: The power unit (500) has two groups, which are respectively arranged on both sides of the moving frame (100).

8. A bidirectional force measurement system for automobile door locks as claimed in claim 7, characterized in that: The power unit (500) is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

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