A lock tester device

Abstract

The application provides a lock tester, which comprises a base, a support arranged on the base, a presser plate arranged on the support and capable of moving up and down, a probe connected to the presser plate, a circular fixing ring arranged on the upper side of the base, a gear arranged on the inner side of the fixing ring and capable of rotating, an opening arranged on the front side of the fixing ring, a U-shaped mounting seat connected to the opening, a push plate arranged on the opening and capable of swinging forward and backward with the right side as the axis, a lock plate arranged on the opening and capable of swinging forward and backward with the left side as the axis, the lock plate being located on the rear side of the push plate, a push strip extending to the rear side and the left side of the left end of the push plate, a through slot arranged on the lock plate and capable of allowing the push strip to pass through, and the left end of the push strip extending to the rear side of the lock plate, the push plate being capable of driving the lock plate to swing backward through the push strip when the push plate swings backward. The effectiveness and reliability of the locking function of the lock can be directly verified.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and more specifically to a locking device testing equipment. Background Technology

[0002] An existing locking device is used to lock rotatable gears, gear discs, etc.

[0003] The locking device includes a locking module and a telescopic rod assembly. Its working principle is as follows: after receiving a preset electrical control signal, the locking module drives the telescopic rod to extend. The telescopic rod pushes the matching locking component, causing the locking component to engage with the limiting gear and gear plate structure, thereby restricting the rotational freedom of the gear and gear plate and realizing the mechanical locking function. After power failure or receiving a reset signal, the telescopic rod retracts, the locking component is released from the limit, and the gear and gear plate can rotate normally.

[0004] Currently, the conventional testing method for this locking device only involves testing basic parameters such as the extension and retraction response speed, extension and retraction stroke, and smoothness of the extension and retraction action of the locking device's telescopic rod. By judging whether the telescopic rod can extend and retract normally, it is determined whether the locking device can work properly.

[0005] However, the above testing method has the following problems: the normal extension and retraction of the telescopic rod can only prove that the drive mechanism and extension mechanism of the locking device are free from jamming faults, and cannot intuitively and truly reflect the actual locking effect and locking reliability of the locking device. Summary of the Invention

[0006] In view of the problems pointed out in the background art, the present invention proposes a locking device to solve the above-mentioned technical problems.

[0007] The technical solution of this invention is implemented as follows: A locking device testing apparatus includes a base, a bracket on the base, a pressure plate that can move up and down on the bracket, a probe connected to the pressure plate, an annular fixing ring on the upper side of the base, and a rotatable gear on the inner side of the fixing ring; an opening on the front side of the fixing ring, with a U-shaped mounting seat correspondingly connected to the opening; a push plate is provided at the opening along the left-right direction, and the push plate can swing back and forth with its right side as the axis; a locking plate is provided at the opening along the left-right direction, and the locking plate can swing back and forth with its left side as the axis; the locking plate is located behind the push plate; a push bar extending backward and to the left side is provided at the left end of the push plate, and a through groove is provided on the locking plate for the push bar to pass through, with the left end of the push bar extending to the rear side of the locking plate; when the push plate swings backward, it can drive the locking plate to swing backward through the push bar.

[0008] The invention is further configured such that the left end of the locking plate is provided with a barb, and the locking plate can swing back and forth about the end of the barb as the axis; the rear side of the left side of the mounting base is provided with a connecting groove that connects to the barb, and the barb and the connecting groove cooperate to prevent the left end of the locking plate from moving backward and to the right, and the connecting groove is widened to the front to form the movement space on the left side of the locking plate when it swings.

[0009] The invention is further configured such that a shaft groove is provided on the right side wall of the mounting base, and the right side of the push plate is movably connected in the shaft groove; a blocking part is provided on the left side wall of the mounting base, the blocking part being correspondingly provided with the push plate, and the blocking part being used to prevent the push plate from moving to the left and dislodging from the shaft groove.

[0010] The invention is further configured such that a baffle is provided on the right side of the opening, the baffle is located behind the push plate, and the baffle is correspondingly provided with the locking plate.

[0011] The invention is further configured such that the left side of the mounting base is provided with a through hole communicating with the connecting groove, and a pin and a return spring are threadedly connected inside the through hole. The front end of the return spring abuts against the pin, and the rear end of the return spring abuts against the left end of the locking plate.

[0012] The present invention is further configured such that positioning posts are vertically provided on the bases on the left and right sides of the mounting base.

[0013] The present invention is further configured such that the front side wall of the mounting base is provided with positioning holes that penetrate its front and rear sides.

[0014] The present invention is further configured such that a guide rod is vertically provided on the bracket, a guide hole is provided on the pressure plate that slides with the guide rod, and a driving device is provided on the bracket to drive the pressure plate to move up and down.

[0015] The present invention is further configured such that a retaining ring is connected to the inner side of the upper end of the fixed ring to restrict the upward movement of the gear.

[0016] The invention is further configured such that the gear is only allowed to rotate clockwise.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are as follows: The locking device provided by this invention first installs and fixes the locking device on the mounting base. The locking device is initially positioned by two positioning pins cooperating with the corresponding hole structure on the locking device. Then, the locking device is pressed and fixed by the pressure plate. At the same time, the probe on the pressure plate forms an electrical connection with the locking device.

[0018] When the locking device is fixed, the telescopic rod structure on the lower side of the locking device is located inside the mounting base, and the telescopic rod is in a position where it can extend and retract.

[0019] A positioning bolt is threaded into the positioning hole on the front side wall of the mounting base. The positioning bolt can be used to further position and fix the locking part located inside the mounting base.

[0020] During testing, activating the test switch sends an electrical signal to the locking device via a probe. The locking device is activated, the telescopic rod extends forward, and the telescopic rod pushes the left side of the push plate to swing backward until it abuts against the baffle. Simultaneously, the push plate drives the right side of the locking plate to swing backward via a push bar, causing the right side of the locking plate to engage in the gear's tooth groove, preventing the gear from rotating clockwise. At this point, the right side of the locking plate engaging in the gear's tooth groove can be visually observed, confirming that the gear cannot rotate clockwise. The gear can also be manually driven to confirm whether it can rotate clockwise. This provides a direct and accurate reflection of the locking device's actual locking effect and reliability.

[0021] When the right end of the locking plate swings backward, the left end of the locking plate will compress the return spring.

[0022] After the test is completed, the telescopic rod retracts, and the locking plate swings forward to reset under the action of the return spring. At the same time, the locking plate drives the push bar and push plate to swing forward to reset, preparing for the next test. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the hidden support of the present invention. Figure 1 .

[0026] Figure 3 This is a schematic diagram of the structure of the hidden support of the present invention. Figure 2 .

[0027] Figure 4 This is a schematic diagram showing the disassembled structure of the retaining ring of the present invention.

[0028] Figure 5 This is a partial structural diagram of the mounting base location of the present invention. Figure 1 .

[0029] Figure 6 This is a partial structural diagram of the mounting base location of the present invention. Figure 2 .

[0030] Figure 7 This is a partial structural diagram of the mounting base location of the present invention. Figure 3 .

[0031] Figure 8 This is a partial structural diagram of the mounting base location of the present invention. Figure 4 .

[0032] Figure 9 This is a schematic diagram of the push plate and locking plate of the present invention.

[0033] The following are the labels in the attached diagram: 1. Base; 2. Bracket; 3. Pressure plate; 4. Probe; 5. Fixing ring; 6. Gear; 7. Opening; 8. Mounting seat; 9. Push plate; 10. Locking plate; 11. Push bar; 12. Through groove; 13. Barb; 14. Connecting groove; 15. Shaft groove; 16. Blocking part; 17. Baffle; 18. Through hole; 19. Pin; 20. Return spring; 21. Positioning pin; 22. Positioning hole; 23. Guide rod; 24. Drive device; 25. Retaining ring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] For reference as follows Figures 1-9 The present invention will be described as follows: Example: A locking device testing device includes a base 1, which is a rectangular box structure with high structural rigidity and strong load-bearing stability, and can provide a stable installation benchmark and support foundation for all components of the device.

[0036] A bracket 2 is vertically fixed on the upper surface of the base 1. The bracket 2 is a vertical support component and serves as the mounting carrier for the pressure plate 3, guide rod 23, and drive device 24.

[0037] The bracket 2 is equipped with a pressure plate 3 that can move up and down in the vertical direction. The direction of movement of the pressure plate 3 is perpendicular to the upper plane of the base 1 to ensure the verticality and stability of the pressing action.

[0038] A guide rod 23 is vertically fixed on the bracket 2, and a guide hole matching the guide rod 23 is opened on the plate body of the pressure plate 3. The guide rod 23 and the guide hole form a sliding fit structure, which can accurately guide the up and down movement of the pressure plate 3, limit the horizontal offset and tilting of the pressure plate 3, and ensure that the pressing action of the pressure plate 3 is stable and the displacement is accurate.

[0039] The bracket 2 is equipped with a drive device 24, which provides power for the up and down movement of the pressure plate 3. The drive device 24 can be a conventional drive component such as a cylinder or a manual pressure rod, and can be flexibly selected according to the needs of the test scenario to adapt to various working conditions of automated and manual testing.

[0040] A probe 4 is fixedly connected to the plate body of the pressure plate 3. The probe 4 is electrically connected to the independent test system module through an external wire, which can realize the transmission of electrical signals between the test system module and the lock under test, and provide an electrical control path for the start, stop and action trigger of the lock.

[0041] A ring-shaped fixing ring 5 is fixedly installed on the upper side of the base 1. The fixing ring 5 is the base for bearing and limiting the gear 6.

[0042] A rotatable gear 6 is mounted on the inner side of the fixed ring 5. The gear 6 adopts a circular structure, and the bracket 2 is arranged in the hollow area inside the gear 6, which optimizes the overall layout of the device and reduces the space occupied by the equipment.

[0043] An annular groove is provided on the inner side wall of the upper end of the fixed ring 5. A retaining ring 25 is embedded and fixed inside the annular groove. The retaining ring 25 is located on the upper side of the gear 6 and can form a vertical limit on the gear 6, restricting the gear 6 from producing upward vertical displacement. Only the circumferential rotational freedom of the gear 6 is retained, ensuring that the gear 6 can only rotate circumferentially and has no vertical movement.

[0044] Meanwhile, gear 6 is configured to allow only clockwise rotation.

[0045] An opening 7 is provided on the front side of the fixed ring 5. The opening 7 is a locking action avoidance and component installation station.

[0046] The opening 7 is equipped with a U-shaped mounting base 8. The mounting base 8 has a rearward opening structure. The two rear ends of the mounting base 8 are fixedly connected to the left and right sides of the opening 7, respectively, to achieve a stable assembly of the mounting base 8 and the fixing ring 5. The inner space of the mounting base 8 is the installation position for the telescopic rod assembly of the lock to be tested.

[0047] Positioning posts 21 are vertically fixed on the left and right sides of the base 1 and the mounting base 8. The two positioning posts 21 are the preliminary positioning components of the lock to be tested. They can be inserted and matched with the corresponding positioning hole structure of the lock body to be tested, limiting the horizontal displacement and angular deviation of the lock, and realizing the preliminary positioning of the lock after installation.

[0048] The front side wall of the mounting base 8 has a positioning hole 22 that runs through both the front and rear sides. The positioning hole 22 can be threaded with a positioning bolt. The operator can tighten the lock to be tested by using the positioning bolt to perform secondary locking and positioning of the local structure of the lock inside the mounting base 8, and further fix the lock with the positioning column 21.

[0049] A push plate 9 and a locking plate 10 are arranged in the left and right directions at the opening 7 position. The two are the core transmission and locking execution components, and the locking plate 10 is arranged at the rear side of the push plate 9, forming a front and rear layer transmission structure.

[0050] The right side wall of the mounting base 8 is provided with a shaft groove 15, and the right end of the push plate 9 is movably embedded in the shaft groove 15, so that the push plate 9 can swing back and forth by relying on the right end as the axis.

[0051] The left side wall of the mounting base 8 is integrally formed or fixedly provided with a blocking part 16. The blocking part 16 corresponds to the left end position of the push plate 9, which can limit the push plate 9 on the left side, prevent the push plate 9 from shifting to the left and dislodging from the shaft groove 15, and ensure the structural stability of the push plate 9 during the swinging process.

[0052] The locking plate 10 is arranged in the left-right direction at the opening 7. The locking plate 10 can swing in the front-back direction with its left side structure as the axis.

[0053] The left end of the push plate 9 is integrally formed with a push bar 11 extending to the rear and left side. The locking plate 10 has a through groove 12 that matches the push bar 11. The left end of the push bar 11 passes through the through groove 12 and extends to the rear side of the locking plate 10, forming a sliding transmission fit structure.

[0054] When the push plate 9 swings backward along the right axis, the locking plate 10 can be driven to swing backward along the left axis through the cooperation structure of the push bar 11 and the through groove 12, so as to realize the step-by-step transmission of power.

[0055] The left end of the locking plate 10 is integrally formed with a barb 13 structure, and the locking plate 10 can swing back and forth by relying on the end of the barb 13 as the axis.

[0056] A connecting groove 14 is provided on the rear left side of the mounting base 8. The rear side of the connecting groove 14 is connected to the opening 7 of the fixing ring 5. The barb 13 is fitted into the connecting groove 14.

[0057] The connecting groove 14 can restrict the leftward and forward displacement of the left end of the locking plate 10, and the barb 13 can restrict the backward and rightward displacement of the left end of the locking plate 10 by cooperating with the groove wall of the connecting groove 14, thereby realizing multi-directional limiting of the left end of the locking plate 10 and retaining only the swing freedom of the right end of the locking plate 10.

[0058] Meanwhile, the connecting groove 14 is widened to the front to form an extended groove space, which can provide a small swing margin for the left end of the locking plate 10 and avoid structural interference.

[0059] The mounting base 8 has a through hole 18 on the left side that communicates with the connecting groove 14. A pin 19 is installed inside the through hole 18 by means of a threaded connection, and a return spring 20 is nested inside the through hole 18.

[0060] The front end face of the return spring 20 abuts against the rear end face of the pin 19, and the rear end face of the return spring 20 abuts against the left side wall of the locking plate 10. The pin 19 can lock the return spring 20 in place, ensuring that the compression and rebound action of the return spring 20 is stable and reliable.

[0061] A baffle 17 is fixedly installed on the right side of the opening 7. The baffle 17 is arranged on the rear side of the push plate 9, and the baffle 17 and the locking plate 10 are arranged in a left-right correspondence.

[0062] The baffle 17 can limit the backward swing of the push plate 9, restrict the maximum swing stroke of the push plate 9, avoid excessive swing angle of the push plate 9 causing structural collision and deformation, and at the same time ensure that the swing stroke of the push plate 9 is uniform in each test, thus ensuring the consistency of the test conditions.

[0063] When performing locking device performance testing, the device is divided into four stages: clamping and positioning, electrical signal connection, locking performance testing, and automatic reset. The actions of each stage are smooth and precise.

[0064] The first stage is the clamping and positioning of the lock: the lock to be tested is placed on the mounting base 8, so that the positioning structure at the bottom of the lock is inserted and engaged with the two positioning posts 21 on the base 1, thus completing the initial positioning of the lock and limiting the horizontal offset and angular deflection of the lock.

[0065] Then the drive device 24 is started, and the drive device 24 drives the pressure plate 3 to move vertically downward along the guide rod 23. The clamping force of the pressure plate 3 firmly presses and fixes the locker on the mounting base 8.

[0066] At this time, the telescopic rod structure on the lower side of the locking device is located inside the mounting base 8 and faces the push plate 9, maintaining the telescopic rod in a working posture that allows it to extend and retract forward and backward.

[0067] Finally, a positioning bolt is inserted into the positioning hole 22 on the front side wall of the mounting base 8. The locking device is then tightened by the positioning bolt to complete the all-round fixation of the locking device and prevent the equipment from shifting during the test.

[0068] The second stage is electrical connection: while the pressure plate 3 moves down to press the lock, the probe 4 fixed on the pressure plate 3 makes precise contact with the electrical interface of the lock under test, and a reliable electrical connection between the lock and the external test system module is achieved through the wire, ensuring that the test system module can send control electrical signals to the lock normally.

[0069] The third stage is the locking performance test: the staff starts the test switch, and the external test system module outputs a working electrical signal to the lock under test through probe 4 to activate the lock. The telescopic rod of the lock extends forward, and the end of the telescopic rod pushes the left side of the push plate 9, causing the push plate 9 to swing backward with the right shaft groove 15 as the axis until the rear end face of the push plate 9 abuts against the baffle 17, completing the limit and shaping.

[0070] During the backward swing of the push plate 9, the push bar 11 at the left end of the push plate 9 moves synchronously, driving the locking plate 10 to swing backward around the left end barb 13 as the axis through the through groove 12, so that the right end of the locking plate 10 is engaged in the tooth groove of the gear 6.

[0071] After the locking plate 10 is engaged in the tooth groove of the gear 6, it can directly restrict the clockwise rotational freedom of the gear 6, thereby locking the gear 6.

[0072] At this time, the staff can directly observe the meshing state of the locking plate 10 and the gear 6 tooth groove, or manually turn the gear 6 to check whether the gear 6 rotates clockwise. In this way, they can intuitively determine whether the telescopic rod pushing action and locking transmission action of the lock under test are effective, accurately verify the actual locking effect and locking reliability of the lock, and avoid the detection blind spot of traditional single telescopic test.

[0073] During the backward swing of the locking plate 10, the left end of the locking plate 10 will compress the return spring 20, causing the return spring 20 to undergo compression deformation and store elastic return potential energy.

[0074] The fourth stage is automatic device reset: After a single test is completed, the test system module stops outputting electrical signals, and the telescopic rod of the lock under test automatically retracts, releasing the pushing force on the push plate 9.

[0075] At this time, the compressed return spring 20 releases its elastic potential energy and pushes the left end of the locking plate 10 forward, driving the locking plate 10 to swing forward and reset around the barb 13 as the axis. During the reset process of the locking plate 10, the push plate 9 is driven to swing forward and reset simultaneously through the cooperation structure of the through groove 12 and the push bar 11, so that the push plate 9 and the locking plate 10 are both restored to the initial standby position, completing the overall reset of the device, and the next round of locking device testing can be carried out directly.

[0076] This device, through a step-by-step transmission structure of push plate 9 and locking plate 10, transforms the extension and retraction of the locking device's telescopic rod into the locking action of gear 6. This allows for direct observation and verification of the locking device's actual locking capability, effectively identifying hidden faults such as insufficient telescopic rod thrust or incomplete locking. Simultaneously, the device features precise positioning, automatic reset, and stable operation. The test results are intuitive, accurate, and highly repeatable, effectively improving the accuracy and reliability of factory testing and maintenance inspections of the locking device.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A locking device testing apparatus, comprising a base, a support on the base, a pressure plate movable up and down on the support, a probe connected to the pressure plate, and the probe electrically connected to an independent testing system module via an external wire, thereby realizing the transmission of electrical signals between the testing system module and the locking device under test, providing an electrical control path for the starting, stopping, and triggering of the locking device, characterized in that: The base has an annular fixing ring on its upper side, and a rotatable gear on its inner side. The fixing ring has an opening at its front, with a U-shaped mounting base connected to the opening. A push plate is located at the opening in the left-right direction, and the push plate can swing back and forth around its right side. A locking plate is also located at the opening in the left-right direction, and the locking plate can swing back and forth around its left side. The locking plate is located behind the push plate. A push bar extending backward and to the left is located at the left end of the push plate. A through groove is provided on the locking plate for the push bar to pass through, and the left end of the push bar extends to the rear of the locking plate. When the push plate swings backward, it drives the locking plate to swing backward via the push bar. The gear is only allowed to rotate clockwise.

2. The locking device for testing according to claim 1, characterized in that: The locking plate has a barb at its left end, which allows it to swing back and forth about the end of the barb. The rear side of the left side of the mounting base has a connecting groove that connects to the barb. The barb and the connecting groove work together to prevent the left end of the locking plate from moving backward and to the right. The connecting groove is widened to the front to form a space for movement on the left side of the locking plate when it swings.

3. The locking device for testing according to claim 2, characterized in that: The mounting base has a shaft groove on its right side wall, and the right side of the push plate is movably connected in the shaft groove; the mounting base has a blocking part on its left side wall, which is correspondingly arranged with the push plate and is used to prevent the push plate from moving to the left and dislodging from the shaft groove.

4. The locking device for testing according to claim 3, characterized in that: A baffle is provided on the right side of the opening, and the baffle is located behind the push plate. The baffle is set in correspondence with the locking plate.

5. A locking device for testing according to claim 3, characterized in that: The mounting base has a through hole on the left side that communicates with the connecting groove. A pin and a return spring are threaded into the through hole. The front end of the return spring abuts against the pin, and the rear end of the return spring abuts against the left end of the locking plate.

6. The locking device for testing according to claim 3, characterized in that: The mounting base has vertically positioned posts on its left and right sides.

7. A locking device for testing according to claim 3, characterized in that: The mounting base has positioning holes that extend through its front and rear sides on its front side wall.

8. The locking device for testing according to claim 1, characterized in that: The bracket is vertically provided with a guide rod, the pressure plate is provided with a guide hole that slides with the guide rod, and the bracket is provided with a drive device that drives the pressure plate to move up and down.

9. A locking device for testing according to claim 1, characterized in that: The upper inner side of the fixed ring is connected to a retaining ring that restricts the upward movement of the gear.

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