Locking structure and detection jig

Abstract

The embodiment of the utility model discloses a locking structure and a detection tool, the locking structure comprises a first member and a second member which can be locked with each other, a locking assembly which is accommodated in the first member and comprises a block body and a slide block accommodated in the block body, and the slide block abuts against the first member through a first elastic member; the lock head assembly is located on the second component and comprises a lock column with one end fixed to the second component, a lock block arranged at the other end of the lock column and a disengaging sliding block arranged on the lock column between the lock block and the second component in a sleeving mode. The locking block and the disengaging sliding block are spaced to form a groove cavity. The locking structure comprises a locking state, and in the locking state, a spring bolt formed by the end of the sliding block is located in the groove cavity and abuts against and is fixed to the locking block. When the locking structure is locked and unlocked, locking and unlocking of the first component and the second component can be achieved through cooperation of the locking block, the disengaging sliding block and the spring bolt at one action station, operation is convenient, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of detection and testing fixtures, and more specifically, to a locking structure and a detection fixture. Background Art

[0002] With the progress of society and the vigorous development of the testing and assembly industry, electronic products such as automobiles, semiconductors, mobile phones, and computers are updated faster and faster, and pin mold test fixtures are used more and more, especially the locking structure used in pin mold test fixtures. The existing locking structure opens and closes the parts that need to be moved in different positions when in use, and needs to cooperate with multiple cylinders to achieve automatic opening and closing. The structure is relatively complex, the cost is high, and the operation is also relatively cumbersome. Utility Model Content

[0003] In view of the above problems, the utility model provides a locking structure and a detection fixture. The use of the locking structure can simplify the structural complexity of the test equipment to achieve locking and unlocking between two components.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a locking structure in a first aspect, comprising a first member and a second member that can be locked with each other; and further comprising: a locking assembly received in the first member, comprising a block and a slider received in the block, the slider being pressed against the first member through a first elastic member;

[0006] The lock head assembly is located in the second member, and includes a lock column with one end fixed to the second member, a lock block disposed at the other end of the lock column, and a disengagement slider sleeved on the lock column between the lock block and the second member; the lock block and the disengagement slider are spaced to form a groove cavity;

[0007] The locking structure comprises a locked state, in which a locking tongue formed by the end of the slide block is located in the groove cavity and abuts against and fixed to the locking block.

[0008] Preferably, the block is placed against the first member via a second elastic member;

[0009] The locking structure also includes a pressing piece, which is located on the first component of the locking assembly on the side away from the lock head assembly, and is used to drive the block to move in the direction of the disengagement slider in the direction of the force of the second elastic member.

[0010] Preferably, the disengagement slider includes a structural portion having an outer diameter not less than the maximum outer diameter of the locking block.

[0011] Preferably, in the locked state, the lock tongue includes a mating surface abutting against the lock block, and the mating surface is a plane; the lock block includes an abutting surface abutting against the mating surface of the lock tongue, and the abutting surface is a plane;

[0012] The surface of the locking tongue corresponding to the disengaging slider is an inclined transition surface.

[0013] Preferably, the side wall of the disengagement slider has a trigger surface for sliding fit between the lock tongue and the disengagement slider.

[0014] Preferably, the trigger surface includes: a first structural surface, a second structural surface and a third structural surface;

[0015] The first structural surface is retracted upward from the second structural surface;

[0016] The third structural surface is retracted downward from the second structural surface.

[0017] Preferably, the end of the disengaging slider close to the locking block includes a cavity for accommodating the bottom end of the locking block.

[0018] Preferably, the sum of the friction force between the disengagement slider and the lock column and the gravity of the disengagement slider is smaller than the friction force between the lock tongue and the disengagement slider.

[0019] Preferably, the first component further comprises a receiving groove, and the block is located in the receiving groove;

[0020] A through hole penetrates from the bottom surface of the first component to the receiving groove.

[0021] The second aspect of the utility model further provides a detection jig, the jig comprising the locking structure as described in the first aspect, wherein the first component and an adjacent edge of the second component are connected by a rotating shaft;

[0022] A torsion spring is sleeved on the rotating shaft, and two torsion arms of the torsion spring are respectively in contact with the first component and the second component.

[0023] The beneficial effects of the utility model are as follows:

[0024] The locking structure provided by the utility model has a locking tongue formed at the end of the slider driven by the block body, which is located in the groove cavity and abutted and fixed with the locking block to realize the locking of the first component and the second component; the locking tongue slides to the bottom of the disengagement slider under the drive of the block body, and then continues to slide upward to disengage from the lock head assembly, thereby realizing the unlocking of the first component and the second component; when the locking structure is locked and unlocked, at the action station, the locking and unlocking between the two components can be realized by only an engineering part with a single movement direction, and in the detection field, it has the technical advantages of convenient operation, simple structure, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0026] Figure 1It is an exploded view of a locking structure provided by an embodiment of the utility model.

[0027] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0028] Figure 3 It is a schematic diagram of the overall structure of a locking structure provided by an embodiment of the utility model.

[0029] Figure 4 It is a structural schematic diagram of a lock head assembly in a locking structure provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the utility model, the utility model is further described below in conjunction with preferred embodiments and drawings. Similar components in the drawings are represented by the same reference numerals. Those skilled in the art should understand that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the utility model.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0032] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] In order to solve the problems existing in the prior art, the utility model provides a locking structure, which includes a first member 1 and a second member 2 that can be locked with each other, and also includes a locking assembly accommodated in the first member 1, the locking assembly includes a block 3 and a slider 4 accommodated in the block 3, the slider 4 is pressed against the first member 1 through a first elastic member (not shown in the figure), and two sliders 4 arranged opposite to each other are fixed and accommodated in the block 3, and the back sides of the two sliders 4 are pressed against the first member 1 through the first elastic member, and under the action of the first elastic member, the locking tongue 41 formed at the end of the slider 4 can be extended and retracted. The block 3 includes a groove 31 formed by being recessed upward from the bottom surface of the block 3, and a mounting hole 32 extending from the side wall of the block 3 to the groove 31, and the slider 4 is located in the mounting hole 32. The locking structure also includes a lock head assembly 5 located on the second member 2, the lock head assembly 5 includes a lock column 51 fixed at one end to the second member 2, a lock block 52 arranged at the other end of the lock column 51, and a disengagement slider 6 sleeved on the lock column 51 between the lock block 52 and the second member 2, and the disengagement slider 6 can reciprocate along the extension direction of the lock column 51; the lock block 52 and the disengagement slider 6 are separated to form a groove cavity 7; the locking structure includes a locked state, in which the lock tongue 41 formed by the end of the slider 4 is located in the groove cavity 7 and abuts and fixes with the lock block 52. The lock block 52 can pass through the lock tongues 41 formed by the proximal ends of the two sliders 4, and the two lock tongues 41 are located in the groove cavity 7 and abut and fix with the lock block 52.

[0036] In the above embodiment of the present application, when the first member 1 and the second member 2 are in a separated state, that is, the locking structure is in an unlocked state, the locking block 52 and the disengagement slider 6 are separated to form a groove 7, and the locking tongues 41 at the ends of the two sliders 4 are in a state of being close to each other, that is, in an extended state, under the action of the first elastic member. When the first member 1 and the second member 2 are close to each other, the locking block 52 passes through the gap between the locking tongues 41 formed by the ends of the two sliders 4 until the two locking tongues 41 are located in the groove 7 and abut against the locking block 52. At this time, the first member 1 and the second member 2 are in a locked state. During the process of the locking block 52 passing through the gap between the locking tongues 41 formed by the ends of the two sliders 4, the two locking tongues 41 first retract under the action of the locking block 52, and the elastic force of the first elastic member gradually increases. When the locking tongue 41 slides to the groove 7, under the action of the elastic force of the first elastic member, the locking tongue 41 extends and is located in the groove 7, and is abutted against the locking block 52. When the first component 1 and the second component 2 want to be unlocked, first a driving force is given to the block 3 in the direction of the second component 2. Driven by the block 3, the locking tongue 41 can slide to the bottom of the disengaging slider 6. During the sliding process, the locking tongue 41 first retracts under the action of the disengaging slider 6. When the locking tongue 41 slides to the bottom of the disengaging slider 6, under the action of the first elastic member, the end of the locking tongue 41 abuts against the side wall of the lock column 51 under the disengaging slider 6. When the block 3 has a driving force away from the second component 2, the block 3 drives the locking tongue 41 to slide in the direction away from the second component 2, and disengages from the disengaging slider 6 and the locking block 52 in turn. At this time, the first component 1 and the second component 2 are in an unlocked state. The locking structure provided by the present application has a locking tongue 41 formed at the end of the slider 4 driven by the block 3, which is located in the groove cavity 7 and abutted and fixed with the locking block 52 to achieve the locking of the first component 1 and the second component 2. The locking tongue 41 slides to the bottom of the disengaging slider 6 under the drive of the block 3, and then continues to slide upward to disengage from the lock head assembly 5, thereby achieving the unlocking of the first component 1 and the second component 2. When the locking structure is locked and unlocked, the first component 1 and the second component 2 can be locked and unlocked in one action station through the cooperation of the locking block 3, the disengaging slider 6 and the locking tongue 41. The operation is convenient, the structure is simple, and the cost is low.

[0037] In a specific embodiment, the block 3 is placed against the first member 1 through the second elastic member 12. The second elastic member 12 can be a spring, but is not limited to a spring. When the second elastic member 12 is compressed, the direction of the force it exerts is along the sliding direction of the slider 4, and the axis of the first elastic member is orthogonal to the axis of the second elastic member 12. The locking structure also includes a pressing member 8, which is located on the first member 1 on the side of the locking assembly away from the lock head assembly 5. The pressing member 8 is used to drive the block 3 to move in the direction of the disengagement slider 6. When the first member 1 and the second member 2 are to be unlocked, the block 3 is driven by the pressing member 8, and the block 3 drives the lock tongue 41 to move in the direction of the second member 2 until the lock tongue 41 slides from the groove 7 to the bottom of the disengagement slider 6. At this time, the second elastic member 12 has elastic force. When the driving force on the pressing member 8 is removed, under the action of the elastic force of the second elastic member 12, the block 3 bounces in the direction away from the second member 2, and drives the lock tongue 41 to disengage from the disengagement slider 6 and the lock block 52 in sequence, so that the first member 1 and the second member 2 are unlocked. Here, when the block 3 is driven by the pressing member 8, in order to make the block 3 pressed down in a balanced and stable manner, and to make the elastic force more uniform when the block 3 bounces up, the number of the second elastic members 12 is four, arranged at the four corners of the block 3. In this solution, the force of the pressing member 8 acting on the lock assembly 5 does not affect the relative position and the buckling quality between the first member 1 and the second member 2. When the locking structure is used as a detection fixture with the first member and the second member, it will not cause disturbance to the electrical connection structure between the first member and the second member, ensuring the stability of the connection quality.

[0038] In a specific embodiment, when the locking structure is in a locked state, the lock tongue 41 includes a mating surface that abuts against the lock block 52, and the mating surface is a plane. The lock block 52 includes an abutting surface that abuts against the mating surface of the lock tongue 41, and the abutting surface is a plane. The surface of the lock tongue 41 corresponding to the disengagement slider 6 is an inclined transition surface 411, which refers to the surface corresponding to the disengagement slider 6 when the lock tongue 41 is located in the groove cavity 7. The design of the mating surface of the lock tongue 41 and the abutting surface of the lock block 52 are both planes, so that when the lock tongue 41 is in the groove cavity 7, the top of the lock tongue 41 can abut against the bottom of the lock block 52, so that the lock tongue 41 is fixed in the groove cavity 7, and the locking structure is in a locked state. The surface of the lock tongue 41 corresponding to the disengagement slider 6 is designed as an inclined transition surface 411, so that the lock tongue 41 slides more smoothly when it slides below the disengagement slider 6.

[0039] In a specific embodiment, the disengagement slider 6 includes a structural portion having an outer diameter not less than the maximum outer diameter of the locking block 52. Specifically, the structural portion is formed by a protrusion on the side wall surface of the disengagement slider 6. The design of the structural portion further improves the smoothness of the lock tongue 41 when it slides from the groove cavity 7 to the bottom of the disengagement slider 6, and also makes the process of the lock tongue 41 sliding upward from the bottom of the disengagement slider 6 smoother.

[0040] In a specific embodiment, the side wall of the disengagement slider 6 has a trigger surface for the lock tongue 41 to slide with the disengagement slider 6. The trigger surface constitutes the above-mentioned structural part, or part of the trigger surface constitutes the above-mentioned structural part.

[0041] Furthermore, the trigger surface includes: a first structural surface 61, a second structural surface 62 and a third structural surface 63; the first structural surface 61 is retracted upward from the second structural surface 62; the third structural surface 63 is retracted downward from the second structural surface 62. The maximum outer diameter of the second structural surface 62 is greater than the maximum outer diameter of the first structural surface 61 and the third structural surface 63, the second structural surface 62 forms the above-mentioned structural part, and the outer diameter of the second structural surface 62 is not less than the maximum outer diameter of the locking block 52. During the unlocking process of the locking structure, the lock tongue 41 slides from the groove cavity 7 to the bottom of the disengaging slider 6 through the first structural surface 61. Since the first structural surface 61 is retracted upward, it extends from the top of the disengaging slider 6 to the direction of the second structural surface 62 to form a downward inclined surface. The lock tongue 41 can smoothly pass through the inclined surface and slide to the bottom of the disengaging slider 6 through the second structural surface 62; since the third structural surface 63 is retracted downward, it extends from the bottom of the disengaging slider 6 to the direction of the second structural surface 62 to form an upward inclined surface. Driven by the block 3, the lock tongue 41 can smoothly pass through the inclined surface to disengage from the disengaging slider 6. Since the outer diameter of the second structural surface 62 is not less than the maximum outer diameter of the locking block 52, the lock tongue 41 can also smoothly disengage from the locking block 52, thereby realizing the unlocking of the first component 1 and the second component 2.

[0042] In a specific embodiment, the end of the disengaging slider 6 close to the locking block 52 includes a cavity (not shown in the figure) for accommodating the bottom end of the locking block 52. When the locking tongue 41 is driven by the block 3 to disengage the disengaging slider 6 and the locking block 52, the locking tongue 41 will push the disengaging slider 6 to move upwards in the process of sliding upwards (i.e., sliding in the direction away from the second component 2) until the disengaging slider 6 abuts against the locking block 52. The design of the end cavity of the disengaging slider 6 close to the locking block 52 can make the bottom end of the locking block 52 located in the cavity, so that the disengaging slider 6 and the locking tongue 41 can achieve seamless cooperation, which facilitates the disengagement of the locking tongue 41 from the locking block 52 and realizes the unlocking of the locking structure.

[0043] Of course, the end of the disengaging slider 6 close to the locking block 52 may not include a cavity for accommodating the bottom end of the locking block 52. When the disengaging slider 6 abuts against the locking block 52, the width of the end surfaces of the two adjacent ends of the two locking tongues 41 in the sliding direction of the locking tongues 41 can be greater than the distance between the structural part of the disengaging slider 6 and the locking block 52. In this way, the locking tongues 41 can also be disengaged from the locking block 52 and will not be stuck by the locking block 52.

[0044] Furthermore, the sum of the friction between the disengagement slider 6 and the lock column 51 and the gravity of the disengagement slider 6 is smaller than the friction between the lock tongue 41 at the end of the slider 4 and the disengagement slider 6. In this way, when the lock tongue 41 slides upward from the bottom of the disengagement slider 6 driven by the block 3, it can push the disengagement slider 6 to move upward, so that the lock tongue 41 can smoothly disengage from the lock head assembly 5.

[0045] In a specific example, the disengagement slider 6 and the lock column 51 can be fitted together, and there will be sliding friction between the two. The disengagement slider 6 will not shake during the movement on the lock column 51, and the two lock tongues 41 will exert uniform pushing force on the disengagement slider 6, which makes it easy for the lock tongues 41 to disengage from the disengagement slider 6.

[0046] In another specific example, there may be a gap between the disengagement slider 6 and the lock column 51, that is, the inner diameter of the disengagement slider 6 is slightly larger than the outer diameter of the lock column 51, and there is basically no sliding friction between the two. Since the two lock tongues 41 are symmetrically arranged, as long as the friction between the lock tongue 41 and the disengagement slider 6 is greater than the gravity of the disengagement slider 6, the lock tongue 41 can be disengaged from the disengagement slider 6.

[0047] In a specific embodiment, the first member 1 further includes a receiving groove (not shown in the figure), and the block 3 is located in the receiving groove; a through hole 11 is passed from the bottom surface of the first member 1 to the receiving groove. The locking block 52 passes through the through hole 11 to between the locking tongues 41 of the two sliders 4 in the receiving groove. The setting of the receiving groove allows the block 3 and the second elastic member 12 to be embedded in the first member 1, reducing the volume of the entire locking structure.

[0048] In a specific embodiment, a fixing seat 21 for fixing the lock column 51 is further provided on the second member 2; the disengagement slider 6 is located between the fixing seat 21 and the lock block 52, and the top of the fixing seat 21 can support the disengagement slider 6 so that it does not move toward the second member 2. The outer wall diameter of the fixing seat 21 is smaller than the maximum outer diameter of the third structural surface 63 of the disengagement slider 6. In the natural state, the end of the third structural surface 63 of the disengagement slider 6 away from the second structural surface 62 abuts against the top surface of the fixing seat 21. During the unlocking process, the lock tongue 41 slides from the top of the disengagement slider 6 to the bottom of the disengagement slider 6, that is, the lock tongue 41 abuts against the side wall of the fixing seat 21. At this time, the driving force on the pressing member 8 can be removed. Under the action of the second elastic member 12, the block 3 drives the lock tongue 41 to disengage from the lock head assembly 5. Further, the top surface of the fixing seat 21 is recessed downward to form a plug-in groove 211, and the lock column 51 is plugged into the plug-in groove 211 for easy installation.

[0049] Another embodiment of the present application also provides a detection jig, which includes the above-mentioned locking structure, and the first member 1 and an adjacent edge of the second member 2 are connected by a rotating shaft (not shown in the figure); a torsion spring 91 is sleeved on the rotating shaft, and the two torsion arms of the torsion spring 91 are respectively in contact with the first member 1 and the second member 2. In this embodiment, the rotating shaft can not only realize the rotation connection between the first member 1 and the second member 2, but also carry the torsion spring 91; in addition, when unlocking, the locking assembly and the lock head assembly 5 are separated more smoothly under the joint action of the second elastic member 12 and the torsion spring 91.

[0050] Specifically, when the first component 1 and the second component 2 approach each other until they are in a locked state, the elastic force of the torsion spring 91 gradually increases; during the unlocking process, the pressing member 8 is driven, and the block 3 drives the lock tongue 41 to slide under the disengagement slider 6. At this time, the elastic force of the second elastic member 12 also reaches the maximum. After the driving force is removed, under the action of the torsion spring 91 and the second elastic member 12, the lock tongue 41 disengages from the lock head assembly 5, thereby realizing the unlocking of the first component 1 and the second component 2.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A locking structure, comprising a first member and a second member that can be locked to each other; characterized in that: Also includes: A locking assembly is received in the first member, comprising a block and a slider received in the block, wherein the slider is pressed against the first member via a first elastic member; The lock head assembly is located in the second member, and includes a lock column with one end fixed to the second member, a lock block disposed at the other end of the lock column, and a disengagement slider sleeved on the lock column between the lock block and the second member; the lock block and the disengagement slider are spaced to form a groove cavity; The locking structure comprises a locked state, in which a locking tongue formed by the end of the slide block is located in the groove cavity and abuts against and fixed to the locking block.

2. The locking structure according to claim 1, characterized in that: The block is pressed against the first member via a second elastic member; The locking structure also includes a pressing piece, which is located on the first component of the locking assembly on the side away from the lock head assembly, and is used to drive the block to move in the direction of the disengagement slider in the direction of the force of the second elastic member.

3. The locking structure according to claim 1, characterized in that: The disengaging slider comprises a structural part with an outer diameter not less than the maximum outer diameter of the locking block.

4. The locking structure according to claim 1, characterized in that: In the locked state, the lock tongue includes a mating surface abutting against the lock block, and the mating surface is a plane; the lock block includes an abutting surface abutting against the mating surface of the lock tongue, and the abutting surface is a plane; The surface of the locking tongue corresponding to the disengaging slider is an inclined transition surface.

5. The locking structure according to claim 1, characterized in that: The side wall of the disengaging slide block has a triggering surface for sliding fit between the locking tongue and the disengaging slide block.

6. The locking structure according to claim 5, characterized in that: The trigger surface includes: a first structural surface, a second structural surface and a third structural surface; The first structural surface is retracted upward from the second structural surface; The third structural surface is retracted downward from the second structural surface.

7. The locking structure according to claim 1, characterized in that: The end of the disengaging slide block close to the locking block includes a cavity for accommodating the bottom end of the locking block.

8. The locking structure according to claim 1, characterized in that: The sum of the friction force between the disengaging slider and the locking column and the gravity of the disengaging slider is smaller than the friction force between the locking tongue and the disengaging slider.

9. The locking structure according to claim 1, characterized in that: The first component also includes: A receiving groove, wherein the block is located in the receiving groove; A through hole penetrates from the bottom surface of the first component to the receiving groove.

10. A detection fixture, characterized in that: The fixture comprises a locking structure as claimed in any one of claims 1 to 9, wherein the first member and an adjacent edge of the second member are connected via a rotating shaft; A torsion spring is sleeved on the rotating shaft, and two torsion arms of the torsion spring are respectively in contact with the first component and the second component.

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