Slide head resistor strip position detection device
By using a slider resistor bar position detection device, the resistance length is changed by sliding a slider on the resistor bar, which solves the problem that existing detection devices are large and cannot detect positions, and achieves fast and accurate detection within a compact structure.
Patent Information
- Application Number
- CN202520623604.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing detection devices are large in size, making them inconvenient to manufacture and design, and cannot be used in a compact structure. Furthermore, they can only detect the presence of objects but cannot obtain their specific location.
The position detection device using a sliding resistor bar includes a housing, a sliding head, and a resistor bar. The sliding head changes the resistance length on the resistor bar, and the position of the object under test is detected by measuring the change in resistance. The device is compact and does not require temporary assembly.
It enables rapid and convenient detection within a compact structure, accurately obtaining the specific location of the object being tested, making detection convenient and fast.
Smart Images
Figure CN223869998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a detection device, and more particularly to a sliding resistor bar position detection device. Background Technology
[0002] To detect the presence of the analyte, existing technology uses... Figure 1 As shown, the switch test probe assembly 200 is mounted on the slider 300, which is mounted on the front end of the push rod of the cylinder 100. The switch test probe assembly 200 has a needle core 210, a tail needle 220, an insulator 230, and an outer sleeve 240. The outer sleeve 240 is fixed to the slider 300 and has a central hole 241. The needle core 210 and the tail needle 220 are inserted into the central hole 241. The rear end of the needle core 210 and the front end of the tail needle 220 are located inside the central hole 241, and a spring 250 is provided between them. The front end of the needle core 210 and the rear end of the tail needle 220 extend out of the central hole 241, and the needle core 210 contacts the outer sleeve 240. An insulator 230 is provided between the tail needle 220 and the outer sleeve 240.
[0003] In the prior art, both the tail needle 220 and the outer sleeve 240 are connected to the detection circuit (not shown in the figure) via wires. When the cylinder 100 pushes the slider 300, the switch test needle assembly 200 moves forward and approaches the object under test 400. At this time, the needle core 210 is compressed backward, so that the needle core 210 touches the tail needle 220. Since the outer sleeve 240, the needle core 210, and the tail needle 220 are all conductive objects, the needle core 210 makes the tail needle 220 and the outer sleeve 240 conductive, thus forming a circuit, thereby proving the existence of the object under test 400.
[0004] It is easy to see that existing technologies are large in size, inconvenient to process and design, require temporary assembly, cannot be used in compact structures, and can only detect the presence or absence of an object, not its specific position. Therefore, improvement is necessary. In view of this, the inventor, drawing on extensive experience accumulated over many years in the field of detection devices, has conducted in-depth research on existing detection devices and developed a sliding resistor bar position detection device, thus giving rise to this invention. Utility Model Content
[0005] The purpose of this invention is to provide a sliding resistor bar position detection device that is smaller in size, easier to process and design, requires no temporary assembly, can be used in a compact structure, and can obtain the specific position of the object being measured, making detection convenient and fast.
[0006] To achieve the above objectives, the solution of this utility model is:
[0007] A sliding resistor strip position detection device includes a housing, a sliding head, and a resistor strip. A sliding head seat is movably mounted on the front section of the housing in a left-right sliding manner, and a return spring is provided between the housing and the sliding head seat. A resistor strip seat is fixedly mounted on the rear section of the housing. A resistor strip is fixed on the resistor strip seat. The front end of the sliding head seat has a test head for detecting the object under test, which extends from the front opening of the housing. A conductive sliding head is fixed at the rear end of the sliding head seat, and the sliding head forms an electrical contact with the resistor strip. The sliding head is driven by the sliding head seat to slide relative to the resistor strip. The sliding head and the resistor strip are directly or indirectly connected to two leads, and are connected to an external detection circuit through the two leads.
[0008] The two ends of the return spring abut against the resistor bar seat and the slide head seat.
[0009] The slider is an elastic slider.
[0010] Both the housing and the slider base are conductive. One lead is connected to the housing, and the slider is indirectly connected to this lead through the housing and the slider base; the other lead is directly connected to the resistor bar.
[0011] The resistor bar consists of two parallel resistor bars. The slider is attached to the two resistor bars to form an electrical contact. The two resistor bars are respectively connected to two leads.
[0012] The test head is a conductive probe, the housing is a conductor, the slider seat is an insulator, there are two resistance bars arranged side by side, the slider is attached to the two resistance bars to form an electrical contact, the two resistance bars are respectively connected to two leads; there is also a lead that is conductive to the housing, and the test head is indirectly connected to this lead through the housing.
[0013] The test head and the slide block are movably configured, with the front opening of the housing forming a constricted notch to restrict the test head's movement. Most of the test head is confined within the housing, while a small portion extends from the front opening. Alternatively, the test head and the slide block are fixedly configured, with the front end of the slide block forming a push rod, and the front end of the push rod directly forming the test head. Furthermore, the push rod can be integrally formed with the slide block, or it can be separately formed and fixed together by a threaded connection for easy replacement. Further, the test head can be a sphere, a hemispherical head, or a square prism.
[0014] The test head is separated from the slide head seat and installed in the base of two layers of material to form a complete unit, which facilitates the replacement of the test head.
[0015] After adopting the above scheme, when this utility model is used for testing, the two leads are connected to the external testing circuit. When the test head touches the object being tested, it drives the slider seat to move into the housing, causing the slider on the slider seat to move on the resistance strip. The movement of the slider changes the length of the current flowing through the resistance strip, thereby changing the resistance between the two leads. By measuring the change in resistance, the left and right positions of the object being tested that is in close contact with the test head can be determined. After the test stops, the slider seat is reset under the action of the reset spring, waiting for the next test.
[0016] In this way, the present invention utilizes a combination of resistance strip and conductive slider, eliminating the need for an external atmospheric cylinder. The overall size of the device is greatly reduced, making it convenient for processing and design. It does not require temporary assembly and can be used in a compact structure, making operation very convenient and fast. Moreover, when the movement of the slider changes the resistance between the leads, the presence of the object being measured can be determined. Then, by measuring the change in resistance, the specific location of the object being measured can be determined, making detection convenient and fast.
[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is an exploded 3D view of the existing detection device;
[0020] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention (single resistor bar);
[0021] Figure 3 This is a cross-sectional schematic diagram of Embodiment 1 of this utility model;
[0022] Figure 4 This is a structural schematic diagram of Embodiment 2 of this utility model (dual resistance strip);
[0023] Figure 5 This is a cross-sectional schematic diagram of Embodiment 2 of this utility model;
[0024] Figure 6 This is a schematic diagram of the use of this utility model. Figure 1 (The object being measured moves up and down);
[0025] Figure 7 This is a schematic diagram of the use of this utility model. Figure 2(The object being measured moves left and right);
[0026] Figure 8 This is a cross-sectional schematic diagram of Embodiment 3 of this utility model;
[0027] Figure 9 This is a cross-sectional schematic diagram of Embodiment 4 of this utility model;
[0028] Figure 10 This is a schematic diagram of test head structure one;
[0029] Figure 11 This is a schematic diagram of test head structure two;
[0030] Figure 12 This is a schematic diagram of test head structure three;
[0031] Figure 13 This is a schematic diagram of test head structure four;
[0032] Figure 14 This is a structural schematic diagram of Embodiment 5 of this utility model;
[0033] Figure 15 This is a cross-sectional schematic diagram of Embodiment 5 of this utility model;
[0034] Figure 16 This is a structural schematic diagram of Embodiment Six of this utility model;
[0035] Figure 17 This is a cross-sectional schematic diagram of Embodiment Six of this utility model.
[0036] Label Explanation
[0037] 100----Cylinder, 200----Switch test probe assembly, 210----Needle core, 220----Tail needle, 230----Insulator, 240----Outer jacket, 241----Center hole, 250----Spring, 300----Slider, 400----Object under test;
[0038] 1----Housing, 2----Slider, 3----Resistor bar, 4----Slider base, 5----Test head, 6----Resistor bar base, 7----Reset spring, 8----First lead, 9----Second lead, 10----Third lead, 11----Base. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0040] It should be noted that the terms front, back, front, back, inside, outside, top, bottom, left, right, first, second, third, etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the technical features indicated, unless otherwise clearly and specifically defined.
[0041] This article defines the direction closer to the inspection station as "front" and the direction farther from the inspection station as "back". The terms "front" and "back" are only relative positions and are used to facilitate the description of the structure, not as a limitation on the technical solution. The front and back can be interchanged without affecting the overall structure.
[0042] like Figures 2 to 17 As shown, this utility model discloses a slider resistor position detection device, including a housing 1, a slider 2 and a resistor 3, and also includes a slider seat 4, a test head 5 and a resistor seat 6.
[0043] The housing 1 can be cylindrical. A slider seat 4 is movably mounted on the front section of the housing 1 in a left-right sliding manner, while a resistor strip seat 6 is fixedly mounted on the rear section of the housing 1. A return spring 7 is provided between the housing 1 and the slider seat 4, causing the slider seat 4 to move forward to its reset position under the action of the return spring 7.
[0044] A resistor strip 3 is fixed on the resistor strip holder 6.
[0045] The front end of the slider base 4 has a test head 5 for detecting the object under test 400. The test head 5 extends from the front opening of the housing 1. A conductive slider 2 is fixed to the rear end of the slider base 4. The slider 2 is attached to the resistor strip 3 to form an electrical contact, and the slider 2 is driven by the slider base 4 to slide relative to the resistor strip 3. To ensure good electrical contact, the slider 2 can be an elastic slider.
[0046] The slider 2 and the resistor bar 3 are directly or indirectly connected to the two leads, and are connected to an external detection circuit (not shown in the figure) through the two leads.
[0047] When this invention is used for testing, when the test head 5 touches the object under test 400, the test head 5 moves into the housing 1, causing the slider 4 to also move into the housing 1. This causes the slider 2 to move relative to the resistance strip 3. The movement of the slider 2 changes the length of current flowing through the resistance strip 3, thereby changing the resistance between the two leads. By measuring the change in resistance, not only can the presence of the object under test 400 be detected, but also its position in the left-right direction can be determined. After the test stops, the slider 4 resets under the action of the return spring 7, waiting for the next test.
[0048] in, Figure 2 and Figure 3 The illustrated embodiment is a single resistance strip structure. Both the housing 1 and the slider seat 4 are conductive. The first lead 8 is conductive to the housing 1, and the slider 2 is indirectly connected to the first lead 8 through the housing 1 and the slider seat 4. The second lead 2 is directly connected to the resistance strip 3. The test head 5 is a sphere, movably separated from the slider seat 4. The front opening of the housing 1 is a constricted opening that restricts the test head 5 from exiting. Most of the test head 5 is confined within the housing 1, while a small portion extends from the front opening. In use, the spherical test head 5 drives the slider seat 4 to move left and right. The elastic slider 2 on the slider seat 4 adheres to the top of the resistance strip 3. The movement of the slider 2 changes the length of current flowing through the resistance strip 3, thereby changing the resistance between the first lead 8 and the second lead 9. By measuring the change in resistance, the position of the object under test 400, which is in close contact with the spherical test head 5, in the left-right direction can be determined.
[0049] Figure 4 and Figure 5 The illustrated embodiment two is a dual-resistance-strip structure. Two resistance strips 3 are arranged side-by-side. The slider 2 is attached to the two resistance strips 3 to form electrical contact. The two resistance strips 3 are respectively connected to the third lead 10 and the second lead 9, meaning the third lead 10 is indirectly connected to the slider 2 through one of the resistance strips 3. In this embodiment, the test head 5 is also a sphere, movably separated from the slider seat 4. The front opening of the housing 1 is a constricted opening that restricts the test head 5 from detaching. Most of the test head 5 is confined within the housing 1, while a small portion extends from the front opening of the housing 1. Since the resistance strip seat 6 is fixed to the housing 1, both ends of the return spring 7 can directly abut against the resistance strip seat 6 and the slider seat 4. In use, the ball test head 5 drives the slider seat 4 to move left and right. The elastic slider 2 on the slider seat 4 is attached to the top of the two resistance bars 3. The movement of the slider 2 changes the length of the current flowing through the two resistance bars 3, thereby changing the resistance between the third lead 10 and the second lead 9. By measuring the change in resistance, the position of the test object 400 that is in close contact with the ball test head 5 in the left and right direction can be determined. In this embodiment, the slider seat 4 can be conductive or not.
[0050] Figure 6The diagram shows the test object 400 moving up and down, squeezing the ball test head 5 and moving it inward. When the test object 400 passes the center line of the test head 5, the position of the test object 400 in the left and right directions can be accurately obtained.
[0051] Figure 7 The diagram shows the test object 400 moving left and right. After the test object 400 moves to contact the ball test head 5, it begins to squeeze the ball test head 5 inward. When the test object 400 stops moving, the position of the test object 400 in the left and right direction can be determined by measuring the change in resistance.
[0052] Figure 8 The difference between Embodiment 3 and Embodiments 1 and 2 is that the spherical test head 5 is replaced with a cylindrical ball test head 5. Figure 9 The difference between Embodiment 4 and Embodiments 1 and 2 is that the spherical test head 5 is replaced with a square column test head 5. Figures 10 to 13 Four shapes of test heads 5 are also provided. The test head 5 can be fixedly mounted to the slide block 4; for example, the front end of the slide block 4 forms a push rod, and the front end of the push rod directly forms the test head 5. Furthermore, the push rod can be integrally formed with the slide block 4, or it can be separately formed and fixed together by a threaded connection, allowing for the replacement of push rods with different test heads 5. The test head 5 of this invention can be a sphere, a hemispherical head, or a square column, or other shapes, all capable of achieving the aforementioned detection functions. Moreover, the test head 5 of this invention is not limited to being conductive; the head shape can be selected according to the needs of the object 400 being tested to test the left-right position of the object 400. A conductive test head 5 can also be used, allowing for simultaneous testing of the terminal positions inside the connector and detection of terminal conductivity.
[0053] Figure 14 and Figure 15 In the fifth embodiment shown, the test head 5 is a conductive probe, the housing 1 is a conductor, and the slider base 4 is an insulator to prevent interference from the resistor leads during the terminal continuity test. Two resistor bars 3 are arranged side-by-side, and the slider 2 is attached to the two resistor bars 3 to form electrical contact. The two resistor bars 3 are respectively connected to the third lead 10 and the second lead 9. The first lead 8 is conductive to the housing 1, and the test head 5 is indirectly connected to the first lead 8 through the housing 1. In this embodiment, the slider base 4 is fitted inside the test head 5. Since the resistor bar base 6 is fixed to the housing 1, the two ends of the return spring 7 can directly abut against the resistor bar base 6 and the test head 5. The third lead 10 and the second lead 9 are connected to an external detection circuit, and the position of the tested object 400 in the left-right direction can be determined by measuring the change in resistance. Simultaneously, the first lead 8 is connected to the external detection circuit, which can detect the continuity performance of the terminals.
[0054] Figure 16 and Figure 17 The sixth embodiment shown uses a split test head 5, that is, the test head 5 and the slide seat 4 are separate. A base 11 with two layers of material is added to the outside of the housing 1. The test head 5 and the slide seat 4 are respectively installed in the base 11 with two layers of material to form a complete unit. When the test head 5 is damaged, only the test head 5 needs to be replaced.
[0055] The embodiments described above are only for illustrating the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, but they do not limit the patent scope of this utility model. All equivalent changes or modifications made in accordance with the spirit disclosed in this utility model should still be covered within the patent scope of this utility model.
Claims
1. A sliding resistor bar position detection device, characterized in that: The device includes a housing, a slider, and a resistance strip. The front section of the housing has a slider seat that can slide left and right, with a return spring between the housing and the slider seat. The rear section of the housing has a fixed resistance strip seat. A resistance strip is fixed to the resistance strip seat. The front end of the slider seat has a test head for detecting the object under test, which extends from the front opening of the housing. The rear end of the slider seat has a conductive slider that forms an electrical contact with the resistance strip. The slider is driven by the slider seat to slide relative to the resistance strip. The slider and the resistance strip are directly or indirectly connected to two leads, and connected to an external detection circuit through these two leads.
2. The sliding resistor bar position detection device according to claim 1, characterized in that: The two ends of the return spring abut against the resistor bar seat and the slide head seat.
3. The sliding resistor bar position detection device according to claim 1, characterized in that: The slider is an elastic slider.
4. The sliding resistor bar position detection device according to claim 1, characterized in that: Both the housing and the slider base are conductive. One lead is connected to the housing, and the slider is indirectly connected to this lead through the housing and the slider base; the other lead is directly connected to the resistor bar.
5. The sliding resistor bar position detection device according to claim 1, characterized in that: The resistor bar consists of two parallel resistor bars. The slider is attached to the two resistor bars to form an electrical contact. The two resistor bars are respectively connected to two leads.
6. The sliding resistor bar position detection device according to claim 1, characterized in that: The test head is a conductive probe, the housing is a conductor, the slider seat is an insulator, there are two resistance bars arranged side by side, the slider is attached to the two resistance bars to form an electrical contact, the two resistance bars are respectively connected to two leads; there is also a lead that is conductive to the housing, and the test head is indirectly connected to this lead through the housing.
7. The sliding resistor bar position detection device according to claim 1, characterized in that: The test head and the slide head seat are movably connected. The front opening of the housing is a constricted opening that restricts the test head from coming out. Most of the test head is confined in the housing, while a small part extends out from the front opening of the housing.
8. The sliding resistor bar position detection device according to claim 1, characterized in that: The test head is fixedly mounted to the slide block, and the front end of the slide block forms a push rod, with the front end of the push rod directly forming the test head; the push rod can be integrally formed with the slide block, or the push rod and the slide block can be separately formed and fixed together by threaded connection.
9. The sliding resistor bar position detection device according to claim 1, characterized in that: The test head can be a sphere, a hemispherical head, or a square column.
10. The sliding resistor bar position detection device according to claim 1, characterized in that: The test head is separated from the slide head seat and installed in the base of two layers of material to form a complete unit.