Anti-falling mechanism for butt joint of elastic probes

By using anti-detachment and telescopic mechanisms, the problem of insufficient reliability in traditional elastic probe connections is solved, achieving a stable probe connection and length adjustment, thus improving the safety and adaptability of the connection.

CN223870718UActive Publication Date: 2026-02-03SHENZHEN HUACHUANG PRECISION HARDWARE CO LTD
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Patent Information

Application Number
CN202520207882.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-02-03
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Traditional connection methods between elastic probes and needle sleeves suffer from problems such as excessive dimensional tolerances, insufficient fitting precision, inadequate material hardness, toughness, or wear resistance, and excessively low coefficient of friction, which reduce connection reliability and increase the risk of detachment.

Method used

An anti-detachment mechanism was designed, including a movable sleeve, a locking bead, a spring, and a telescopic mechanism. The tight engagement of the locking bead with the slot and the elastic force of the spring ensure a stable connection of the probe during the docking process. The telescopic length can be adjusted by a knob to accommodate probes of different specifications and models.

Benefits of technology

It effectively avoids the risk of probes falling off under vibration or external impact, provides a higher level of safety, and enables precise probe docking and length adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-drop mechanism for butt joint of elastic probes, which relates to the technical field of elastic probes, and comprises a probe sleeve, the outer wall of the probe sleeve is fixedly connected with a fixing ring, the outer wall of the probe sleeve is provided with an anti-drop mechanism, the anti-drop mechanism comprises a movable sleeve, the movable sleeve is connected with the probe sleeve in a sliding manner, and the movable sleeve is connected with the probe sleeve in a sliding manner. According to the utility model, the anti-falling mechanism is arranged, the movable sleeve slides downwards, the movable sleeve slides outside the needle sleeve, and the spring is extruded between the movable sleeve and the fixed ring, so that the spring is compressed outside the compression groove, and the clamping bead rotates inside the needle sleeve under the relative movement of the movable sleeve at the moment; under the elastic action of the spring, the fixing tube is firmly fixed in the needle sleeve through the clamping bead, the probe is prevented from falling off during butt joint through clamping connection of the hardness of the clamping bead, and absolute stability of the probe in the butt joint process is ensured through tight clamping connection between the clamping bead and the fixing tube and the anti-falling mechanism.
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Description

Technical Field

[0001] This utility model belongs to the field of elastic probe technology, and in particular relates to an anti-detachment mechanism for elastic probe docking. Background Technology

[0002] Flexible probes are widely used in applications requiring precise connection and conduction of current or signals, especially in the semiconductor and electronic connector industries. For example, in semiconductor chip testing equipment, flexible probes play a crucial role in conducting current and signals, ensuring the accuracy and reliability of test results. In addition, flexible probes are also used in medical devices, smart wearable devices, automotive electronics, and other fields to achieve electrical connections and signal transmission.

[0003] When traditional probes are used for docking, the connection between the traditional probe and the needle sleeve may have design flaws. For example, excessive dimensional tolerances at the connection points, insufficient fitting precision, or insufficient hardness, toughness, or wear resistance of the materials, or too low friction coefficient between the two materials, may reduce the reliability of the connection and increase the risk of detachment. All of these may cause the probe to easily detach from the needle sleeve when subjected to force. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-detachment mechanism for the use of elastic probe docking. Through the anti-detachment mechanism and the telescopic mechanism, the traditional connection method between the probe and the needle sleeve may have design defects when the probe is docked. For example, if the dimensional tolerance of the connection part is too large, the fitting accuracy is insufficient, or if the hardness, toughness or wear resistance of the material is insufficient, or if the friction coefficient between the two materials is too small, the reliability of the connection may be reduced and the risk of detachment may be increased. All of these may cause the probe to easily fall off the needle sleeve when subjected to force.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an anti-detachment mechanism for elastic probe docking, including a needle sleeve, a fixing ring fixedly connected to the outer wall of the needle sleeve, and an anti-detachment mechanism provided on the outer wall of the needle sleeve;

[0007] The anti-detachment mechanism includes a movable sleeve that is slidably connected to a needle sleeve. The top outer wall of the movable sleeve has a movable bead groove, and the bottom outer wall of the movable sleeve has a compression groove. The inner wall of the needle sleeve is slidably connected to a fixed tube, and the outer wall of the fixed tube has a slot. A bead is rotatably connected to the outer wall of the slot. Guide grooves are provided on the left and right outer walls of the fixed tube. A spring is fixedly connected to the outer wall of the compression groove, and a telescopic mechanism is provided on the inner wall of the fixed tube.

[0008] Furthermore, the telescopic mechanism includes a connecting rod, which is slidably connected to a fixed tube, a movable sleeve, which is slidably connected to a fixed ring, a fixed tube, which is slidably connected to a movable sleeve, a locking bead engaging with a locking groove, a locking bead engaging with a needle sleeve, and a spring, which is fixedly connected to a fixed ring.

[0009] Furthermore, a circular block is fixedly connected to the top outer wall of the connecting rod, and a probe is fixedly connected to the bottom outer wall of the connecting rod.

[0010] Furthermore, a fixing rod is fixedly connected to the top outer wall of the left and right sides of the circular block, and a movable block is fixedly connected to the outer wall of the fixing rod.

[0011] Furthermore, the inner wall of the movable block is threaded with a threaded rod, which is rotatably connected to the fixed pipe.

[0012] Furthermore, a knob is fixedly connected to the top outer wall of the threaded rod, and guide blocks are fixedly connected to the left and right outer walls of the movable block.

[0013] Furthermore, the guide block is slidably connected to the guide groove, and the knob is rotatably connected to the fixed tube.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model incorporates an anti-detachment mechanism. The sliding sleeve slides downwards, moving outside the needle sleeve. A spring is compressed between the sliding sleeve and the fixed ring, causing the spring to be compressed outside the compression groove. At this time, the retaining bead rotates inside the needle sleeve due to the relative movement of the sliding sleeve. Through the movement of the retaining bead within its movable groove, and under the elastic force of the spring, the retaining bead firmly fixes the fixed tube inside the needle sleeve. The hardness of the retaining bead itself prevents the probe from falling off during docking. The tight engagement between the retaining bead and the fixed tube ensures absolute stability of the probe during docking. This design effectively avoids the risk of probe detachment due to vibration, external impact, or improper operation, providing users with a higher level of safety.

[0016] 2. This utility model incorporates a telescopic mechanism. Rotating the knob causes the threaded rod to rotate inside the fixed tube. This rotation of the threaded rod causes the moving block to move up and down outside the threaded rod, which in turn causes the fixed rod to move up and down inside the fixed tube. Through the coordinated operation of a series of components, the probe's telescopic length can be adjusted according to actual needs. Users can simply rotate the knob to perceive the change in probe length through visual or tactile feedback. This allows for easy adaptation to various specifications and models of probes and docking equipment, thereby achieving precise docking.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the needle sleeve of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a cross-sectional view of the fixing tube of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Needle sheath; 101. Fixing ring; 2. Anti-detachment mechanism; 201. Moving sleeve; 202. Moving bead groove; 203. Bead; 204. Compression groove; 205. Spring; 206. Fixing tube; 207. Slot; 208. Guide groove; 3. Telescopic mechanism; 301. Connecting rod; 302. Probe; 303. Round block; 304. Fixing rod; 305. Threaded rod; 306. Moving block; 307. Guide block; 308. Knob. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5As shown, this utility model is an anti-detachment mechanism for elastic probe docking, including a needle sleeve 1, a fixing ring 101 fixedly connected to the outer wall of the needle sleeve 1, and an anti-detachment mechanism 2 provided on the outer wall of the needle sleeve 1.

[0028] The anti-detachment mechanism 2 includes a movable sleeve 201. By sliding the movable sleeve 201 outside the needle sleeve 1, the retaining bead 203 and spring 205 can operate stably, thus enabling the anti-detachment mechanism 2 to operate efficiently. The movable sleeve 201 is slidably connected to the needle sleeve 1. The top outer wall of the movable sleeve 201 has a retaining bead movement groove 202, and the bottom outer wall of the movable sleeve 201 has a compression groove 204. The compression groove 204 ensures that the spring 205 can be fully... The inner wall of the compression sleeve 1 is slidably connected to a fixing tube 206. The outer wall of the fixing tube 206 is provided with a slot 207. The outer wall of the slot 207 is rotatably connected to a retaining bead 203. By setting the retaining bead 203, the retaining bead 203 cooperates with the needle sleeve 1 and the slot 207. In actual testing, the fixing tube 206 can be firmly fixed inside the needle sleeve 1. The left and right outer walls of the fixing tube 206 are provided with guide grooves 208. The outer wall of the compression groove 204 is fixedly connected to a spring 205. The inner wall of the fixing tube 206 is provided with a telescopic mechanism 3.

[0029] The telescopic mechanism 3 includes a connecting rod 301, which connects the probe 302 and the circular block 303, allowing the probe 302 to telescopically extend and retract following the movement of the circular block 303. The connecting rod 301 is slidably connected to the fixed tube 206, the movable sleeve 201 is slidably connected to the fixed ring 101, and the fixed tube 206 is slidably connected to the movable sleeve 201. A retaining bead 203 engages with a retaining groove 207. Through the engagement of the retaining groove 207 and the retaining bead 203, the fixed tube 206 is securely fixed inside the needle sleeve 1. The retaining bead 203 engages with the needle sleeve 1. A spring... 205 is fixedly connected to the fixing ring 101. A circular block 303 is fixedly connected to the top outer wall of the connecting rod 301. By setting the circular block 303, the circular block 303 moves up and down driven by the threaded rod 305, so that the circular block 303 can drive the connecting rod 301 to move up and down inside the fixing tube 206. A probe 302 is fixedly connected to the bottom outer wall of the connecting rod 301. Fixing rods 304 are fixedly connected to the top outer walls of the left and right sides of the circular block 303. A moving block 306 is fixedly connected to the outer wall of the fixing rod 304. By setting the moving block 306, the moving block 306 and the threaded rod 305 cooperate with each other, so that the telescopic mechanism 3 can operate efficiently.

[0030] The inner wall of the movable block 306 is threaded with a threaded rod 305, which is rotatably connected to the fixed tube 206. A knob 308 is fixedly connected to the top outer wall of the threaded rod 305. Guide blocks 307 are fixedly connected to the left and right outer walls of the movable block 306. With the guide blocks 307, the guide blocks 307 move up and down with the movable block 306, allowing the guide blocks 307 to slide outside the knob 308. Under the precise guidance of the knob 308, the movable block 306 can maintain a linear up and down movement. The guide blocks 307 are slidably connected to the guide groove 208, and the knob 308 is rotatably connected to the fixed tube 206.

[0031] One specific application of this embodiment is:

[0032] When the operator needs to use the device, when using the probe, the operator slides the movable sleeve 201 downwards. The movable sleeve 201 slides outside the needle sleeve 1, and the spring 205 is compressed between the movable sleeve 201 and the fixed ring 101. This causes the spring 205 to be compressed outside the compression groove 204. At this time, the retaining bead 203 rotates inside the needle sleeve 1 under the relative movement of the movable sleeve 201, causing the retaining bead 203 to move relative to the outside of the retaining bead movable groove 202. The fixed tube 206 is then inserted into the needle sleeve 1. The fixed tube 206 drives the connecting rod 301 into the needle sleeve 1, and the connecting rod 301 drives the probe 302 into the needle sleeve 1. The force applied to the movable sleeve 201 is released, and the spring 205 returns to its original position. Under the elastic action of the spring 205, the spring 205 pushes the movable sleeve 201 within the needle sleeve 1. The external sliding of the movable sleeve 201 causes the locking bead 203 to move and engage with the needle sleeve 1 and the locking groove 207, thus fixing the fixed tube 206 inside the needle sleeve 1. Rotating the knob 308 causes the threaded rod 305 to rotate, which rotates inside the fixed tube 206. The rotation of the threaded rod 305 causes the movable block 306 to move up and down outside the threaded rod 305. The movable block 306 causes the fixed rod 304 to move up and down inside the fixed tube 206. The movable block 306 causes the guide block 307 to move linearly up and down outside the guide groove 208. The fixed rod 304 causes the round block 303 to move up and down, which in turn causes the connecting rod 301 to move up and down inside the fixed tube 206, thus causing the connecting rod 301 to extend and retract the probe 302.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanism for preventing detachment during the docking of an elastic probe, comprising a needle sleeve (1), characterized in that: A fixing ring (101) is fixedly connected to the outer wall of the needle sleeve (1), and an anti-detachment mechanism (2) is provided on the outer wall of the needle sleeve (1). The anti-detachment mechanism (2) includes a movable sleeve (201), which is slidably connected to the needle sleeve (1). The top outer wall of the movable sleeve (201) is provided with a bead-locking groove (202), and the bottom outer wall of the movable sleeve (201) is provided with a compression groove (204). The inner wall of the needle sleeve (1) is slidably connected with a fixed tube (206). The outer wall of the fixed tube (206) is provided with a locking groove (207), and the outer wall of the locking groove (207) is rotatably connected with a bead (203). The left and right outer walls of the fixed tube (206) are both provided with guide grooves (208). The outer wall of the compression groove (204) is fixedly connected with a spring (205), and the inner wall of the fixed tube (206) is provided with a telescopic mechanism (3).

2. The anti-detachment mechanism for elastic probe docking according to claim 1, characterized in that, The telescopic mechanism (3) includes a connecting rod (301), which is slidably connected to a fixed tube (206), a movable sleeve (201) which is slidably connected to a fixed ring (101), a fixed tube (206) which is slidably connected to a movable sleeve (201), a locking bead (203) which is engaged with a locking groove (207), a locking bead (203) which is engaged with a needle sleeve (1), and a spring (205) which is fixedly connected to a fixed ring (101).

3. The anti-detachment mechanism for elastic probe docking according to claim 2, characterized in that, A round block (303) is fixedly connected to the top outer wall of the connecting rod (301), and a probe (302) is fixedly connected to the bottom outer wall of the connecting rod (301).

4. The anti-detachment mechanism for elastic probe docking according to claim 3, characterized in that, The left and right top outer walls of the circular block (303) are both fixedly connected to a fixing rod (304), and the outer wall of the fixing rod (304) is fixedly connected to a moving block (306).

5. The anti-detachment mechanism for elastic probe docking according to claim 4, characterized in that, The inner wall of the movable block (306) is threaded with a threaded rod (305), which is rotatably connected to the fixed tube (206).

6. The anti-detachment mechanism for elastic probe docking according to claim 5, characterized in that, A knob (308) is fixedly connected to the top outer wall of the threaded rod (305), and guide blocks (307) are fixedly connected to the left and right outer walls of the moving block (306).

7. The anti-detachment mechanism for elastic probe docking according to claim 6, characterized in that, The guide block (307) is slidably connected to the guide groove (208), and the knob (308) is rotatably connected to the fixed tube (206).