Proximity switch mounting device and proximity switch assembly

Abstract

The utility model discloses a proximity switch mounting device and a proximity switch assembly, and belongs to the technical field of proximity switches. The proximity switch mounting device comprises a support cylinder, a first end of which is provided with a proximity switch mounting part, and a second end of which is provided with a proximity switch mounting part, the contact pressure head is movably arranged in the second end of the supporting cylinder, and an induction piece matched with the proximity switch is arranged at the end, located in the cylinder cavity, of the contact pressure head; and the first reset piece is connected to the contact pressure head and the supporting cylinder. According to the proximity switch mounting device and the proximity switch assembly, impact damage and false triggering of the proximity switch can be prevented.

Description

Technical Field

[0001] The present application belongs to the technical field of proximity switches, and in particular relates to a proximity switch installation device and a proximity switch assembly. Background Art

[0002] Proximity switches are commonly used position detection components in automated production systems. They are usually set between two bodies in relative motion to detect the relative movement of the two bodies.

[0003] During actual operation, when two objects are moving relative to each other, there is a risk that the moving object will collide with the proximity switch, increasing the risk of damage to the proximity switch. Furthermore, wireless proximity switches, such as magnetic sensors and infrared sensors, can be affected by various debris in the working environment, leading to false triggering. For example, if metal objects appear within the sensing range of the magnetic proximity switch, this can easily cause the proximity switch to falsely trigger, compromising the reliability of automated control. Summary of the Invention

[0004] This application provides a proximity switch installation device and a proximity switch assembly, which are intended to at least to some extent solve the technical problems of proximity switches being damaged by impact and mis-triggered.

[0005] In one aspect of an embodiment of the present application, a proximity switch installation device is provided, comprising:

[0006] A support cylinder is provided with a cylinder cavity therein, and a proximity switch mounting portion is provided at a first end of the support cylinder;

[0007] A contact pressure head is movably disposed in the second end of the support cylinder, and an induction member matching the proximity switch is disposed on one end of the contact pressure head located in the cylinder cavity;

[0008] The first restoring member is connected to the contact pressure head and the supporting cylinder.

[0009] In some embodiments, the proximity switch mounting portion includes an internal threaded portion formed on an inner wall of the support tube.

[0010] In some embodiments, the proximity switch mounting portion includes an annular boss protruding from the inner wall of the support tube, and a screw hole is formed in the middle of the annular boss.

[0011] In some embodiments, the contact pressure head includes an end head and a guide rod;

[0012] The guide rod is movably embedded in the first end of the support tube, the end head is connected to the first end of the guide rod, the sensing element is arranged at the second end of the guide rod, and the end head is located outside the support tube, and the first reset element is connected to the end head and the support tube.

[0013] In some embodiments, an annular limiting boss is provided on the inner wall of the second end of the support tube, the guide rod is slidably embedded in the central through hole of the limiting boss, and a stop flange is provided at the second end of the guide rod, and the stop flange is blocked on the side of the limiting boss away from the end head.

[0014] In some embodiments, the first return member is a first coil spring, the first coil spring is sleeved on the guide rod, and two ends of the first coil spring are respectively in contact with the end head and the limiting boss.

[0015] In some embodiments, the proximity switch mounting device further includes a buffer bracket and a second reset member;

[0016] The support tube is movably arranged on the buffer bracket, the second reset member is connected to the buffer bracket and the support tube, and the moving direction of the support tube is consistent with the moving direction of the contact pressure head.

[0017] In some embodiments, a guide through hole is provided on the buffer bracket, and the support tube is slidably embedded in the guide through hole.

[0018] In some embodiments, a thrust flange is provided on the outer peripheral surface of the support tube, and the second reset member includes a second coil spring, which is mounted on the support tube, and the two ends of the second coil spring are respectively abutted against the thrust flange and the buffer bracket.

[0019] Another aspect of the embodiments of the present application further provides a proximity switch assembly, comprising a proximity switch and any one of the proximity switch mounting devices;

[0020] The proximity switch is installed in the supporting cylinder through the proximity switch installation portion, and the sensing end of the proximity switch is located in the cylinder cavity.

[0021] The embodiments of the present application have at least the following beneficial effects:

[0022] The embodiment of the present application provides a proximity switch installation device and a proximity switch assembly, comprising a support tube, a contact pressure head, and a first reset member. The support tube is provided with a proximity switch installation portion for installing the proximity switch into the support tube, thereby restraining and protecting the proximity switch and limiting debris in the working environment from entering the sensing range of the proximity switch, thereby reducing the risk of false triggering. The contact pressure head is movably provided in the support tube, serving as a sensing marker, replacing the proximity switch to receive the impact of the detection object, so that when the contact pressure head is pushed and moved into the sensing range of the proximity switch, the proximity switch is triggered, thereby reducing the risk of the proximity switch being damaged by direct impact. A first reset member is connected between the contact pressure head and the support tube to reset the contact pressure head, thereby ensuring the reliability of the standby position of the contact pressure head, thereby maintaining the reliability of the function of the proximity switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 A schematic structural diagram of a proximity switch installation device in an embodiment of the present application is shown;

[0025] Figure 2 Shown Figure 1 Schematic diagram of the internal structure of the proximity switch installation device;

[0026] Figure 3 Shown Figure 2 A cross-sectional view of the support cylinder 1 in the proximity switch installation device;

[0027] Figure 4 Shown Figure 2 Cross-sectional view of the proximity switch mounting device in FIG.

[0028] Reference numerals:

[0029] 1-support cylinder, 11-cylinder cavity, 12-proximity switch mounting portion, 12a-annular boss, 13-limiting boss, 13a-center through hole, 14-thrust flange, 15-stop ring block;

[0030] 2-contact pressure head, 21-end head, 21a-guide part, 22-guide rod, 22a-stop flange;

[0031] 3-first return member, 31a-first coil spring;

[0032] 4-Buffer bracket;

[0033] 5-second reset member, 51-second coil spring;

[0034] 6- proximity switch, 61- sensing end, 62- sensing element. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] In addition, this application may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0037] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0038] Proximity switches are commonly used position detection components in automated production systems. They are typically installed between two moving objects to detect whether they are in position relative to each other. In actual operation, there is a risk of the moving object colliding with the proximity switch. Furthermore, wireless induction proximity switches are susceptible to various debris in the working environment, leading to false triggering and compromising the reliability of automated control.

[0039] To this end, the embodiments of the present application provide a proximity switch installation device and a proximity switch assembly, which are intended to restrain and protect the sensing end of the proximity switch to a certain extent, take into account the impact resistance and anti-false touch performance, and improve the functional reliability of the proximity switch.

[0040] Figure 1 A schematic structural diagram of a proximity switch installation device in an embodiment of the present application is shown; Figure 2 Shown Figure 1 Schematic diagram of the internal structure of the proximity switch installation device; Figure 3 Shown Figure 2 A cross-sectional view of the support cylinder 1 in the proximity switch installation device; Figure 4 Shown Figure 2 Cross-sectional view of the proximity switch mounting device in FIG.

[0041] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In some embodiments, the proximity switch mounting device serves as a mounting device for the proximity switch, can effectively fix the proximity switch, protect the proximity switch from direct impact, and limit interference and debris in the working environment, thereby reducing the risk of false triggering.

[0042] Specifically, the proximity switch installation device may include: a support tube 1, a contact pressure head 2 and a first reset member 3; the contact pressure head 2 is movably arranged in the support tube 1, and the first reset member 3 is respectively connected to the support tube 1 and the contact pressure head 2 to drive the contact pressure head 2 to reset after the contact pressure head 2 moves.

[0043] The support tube 1 is the installation and protection body of the proximity switch 6, and a cylinder cavity 11 is opened inside the support tube 1 for accommodating the proximity switch 6, or at least accommodating the sensing end 61 of the proximity switch 6, so as to protect and restrain the proximity switch 6 and reduce the risk of damage by impact under working conditions; at the same time, the support tube 1 can also prevent debris in the working environment from entering the sensing area of ​​the sensing end 61, thereby reducing the risk of false triggering of the proximity switch 6.

[0044] In order to facilitate the installation of the proximity switch 6, a proximity switch mounting portion 12 is provided at the first end of the support tube 1. After the support tube 1 is installed and fixed, the proximity switch 6 can be installed into the support tube 1 through the proximity switch mounting portion 12.

[0045] The contact pressure head 2 is a component that contacts the moving body, and the contact pressure head 2 is movably arranged in the second end of the support tube 1. When the moving body collides with and pushes the contact pressure head 2, the contact pressure head 2 can move along the cylinder cavity 11 of the support tube 1 to approach the sensing end 61, and finally reach the sensing range of the sensing end 61 to trigger the proximity switch 6.

[0046] Generally speaking, a sensing element 62 may be provided on one end of the contact pressure head 2 located in the cylindrical cavity 11 , and the sensing element 62 matches the proximity switch 6 , so that the proximity switch 6 can be reliably triggered after the contact pressure head 2 moves into position.

[0047] The first reset member 3 is connected between the contact pressure head 2 and the support tube 1, and is used to apply a force to the contact pressure head 2 to maintain or restore it to its initial position, so that after the contact pressure head 2 is pushed and moved by the moving body, it is reset under the action of the first reset member 3 to ensure the reliability of the usage state.

[0048] In the proximity switch installation device provided in an embodiment of the present application, a proximity switch installation portion is provided within the support tube for installing the proximity switch within the support tube, thereby restraining and protecting the proximity switch and limiting debris in the working environment from entering the sensing range of the proximity switch, thereby reducing the risk of false triggering. Furthermore, the contact pressure head is movably provided within the support tube, serving as a sensing marker, replacing the proximity switch in receiving the impact of the detection object. When the contact pressure head is pushed and moved into the sensing range of the proximity switch, the proximity switch is triggered, thereby reducing the risk of damage to the proximity switch due to direct impact. A first reset member is connected between the contact pressure head and the support tube to reset the contact pressure head, thereby ensuring the reliability of the standby position of the contact pressure head and maintaining the reliability of the function of the proximity switch.

[0049] In some embodiments, the proximity switch mounting portion 12 can be matched and arranged according to a specific installation method of the proximity switch 6 .

[0050] Specifically, the proximity switch mounting portion 12 may include an internal threaded portion opened on the inner wall of the support tube 1, so that it can adapt to a proximity switch with threads configured on the outer circumference, and the proximity switch 6 can be screwed into the support tube 1.

[0051] In some embodiments, the proximity switch mounting portion 12 may further include an annular boss 12a protruding from the inner wall of the support tube 1 , wherein a screw hole is provided in the middle of the annular boss 12a for screwing a proximity switch with threads on the outer circumference therein.

[0052] In some embodiments, the contact pressure head 2 is used to receive the impact of the moving body and move to the sensing range of the proximity switch 6. To this end, the contact pressure head 2 needs to stably impact the moving body and stably move to the sensing range of the proximity switch 6.

[0053] Specifically, the contact pressure head 2 may include an end head 21 and a guide rod 22 ; wherein the end head 21 is a portion that hits the moving body, and the guide rod 22 is used to maintain the stability of the moving trajectory of the contact pressure head 2 .

[0054] The guide rod 22 is movably embedded in the first end of the support tube 1, the end head 21 is connected to the first end of the guide rod 22, the sensing member 62 can be set at the second end of the guide rod 22, and the end head 21 is located outside the support tube 1, and the first reset member 3 is connected to the end head 21 and the support tube 1.

[0055] That is to say, the guide rod 22 and the support tube 1 form a guiding matching structure to keep the moving trajectory of the end head 21 stable.

[0056] Generally speaking, the end head 21 should also have a certain impact area, so as to have a certain fault tolerance, and can achieve contact pushing even if the moving body has a certain degree of deflection.

[0057] In some embodiments, the end head 21 may be configured as a hemispherical piece with a stable thickness and a striking surface.

[0058] In some embodiments, in order to maintain the guiding stability of the contact pressure head 2 and to limit the risk of the contact pressure head 2 detaching from the support tube 1, an annular limiting boss 13 is provided on the inner wall of the second end of the support tube 1, and the guide rod 22 is slidably embedded in the central through hole 13a of the limiting boss 13. A stop flange 22a is provided at the second end of the guide rod 22, and the stop flange 22a is blocked on the side of the limiting boss 13 away from the end head 21, thereby limiting excessive movement of the guide rod 22.

[0059] In some embodiments, in order to further improve the stability of the moving posture of the contact pressure head 2, one end of the pressure head 21 connected to the guide rod 22 is set to a guide portion 21a, and the guide portion 21a slides with the inner wall of the support tube 1, so that the guide rod 22 and the guide portion 21a together form a guide and limiting mechanism of the contact pressure head 2, thereby improving the reliability of the guide limit.

[0060] In some embodiments, in order to improve the uniformity of force on the guide rod 22 and the guide portion 21a, the first reset member 3 may be a first coil spring 31, which is sleeved on the guide rod 22, and the two ends of the first coil spring 31 are respectively abutted against the end head 21 and the limiting boss 13, thereby ensuring the uniformity of force through the circumferential elastic force around the guide rod 22.

[0061] In some embodiments, in order to further improve the impact resistance of the proximity switch installation device and reduce the risk of impact damage to the proximity switch 6, the support tube 1 can also be set to have an elastic retraction and avoidance and extension and reset form, so that when the contact pressure head 2 is subjected to excessive impact, it can synchronously drive the support tube 1 and the proximity switch 6 to retract and avoid as a whole, and can adaptively reset after the impact is completed.

[0062] To this end, the proximity switch mounting device may also include a buffer bracket 4 and a second reset member 5; the support cylinder 1 is movably arranged on the buffer bracket 4, the second reset member 5 is connected to the buffer bracket 4 and the support cylinder 1, and the moving direction of the support cylinder 1 is consistent with the moving direction of the contact pressure head 2.

[0063] When the contact pressure head 2 is pushed by the moving body, the contact pressure head 2 first compresses the first reset member 3, and then drives the support tube 1 to compress the second reset member 5, thereby greatly cushioning and weakening the impact on the proximity switch 6 and reducing the risk of damage.

[0064] In some embodiments, a guide through hole is provided on the buffer bracket 4 , and the support tube 1 can be slidably embedded in the guide through hole to ensure the stability of the moving posture of the support tube 1 .

[0065] In some embodiments, in order to improve the force uniformity of the support tube 1, a thrust flange 14 is provided on the outer peripheral surface of the support tube 1, and the second reset member 5 may include a second coil spring 51, which is mounted on the support tube 1, and the two ends of the second coil spring 51 are respectively abutted against the thrust flange 14 and the buffer bracket 5, thereby ensuring the force uniformity through the circumferential elastic force around the first support tube 1.

[0066] In some embodiments, a stop ring block 15 can be provided on the circumferential side of the support tube 1, and the stop ring block 15 is provided on the side of the buffer bracket 4 away from the contact pressure head 2 to ensure the position of the support tube 1 and prevent it from being separated from the buffer bracket 4.

[0067] In some embodiments, a proximity switch assembly is also provided, including a proximity switch 6 and the proximity switch mounting device; the proximity switch 6 is installed in the support tube 1 through the proximity switch mounting portion 12, and the sensing end 61 of the proximity switch 6 is located in the tube cavity 11.

[0068] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0071] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0073] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0074] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0075] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A proximity switch installation device, characterized in that: include: A support cylinder is provided with a cylinder cavity therein, and a proximity switch mounting portion is provided at a first end of the support cylinder; A contact pressure head is movably disposed in the second end of the support cylinder, and an induction member matching the proximity switch is disposed on one end of the contact pressure head located in the cylinder cavity; The first restoring member is connected to the contact pressure head and the supporting cylinder.

2. The proximity switch installation device according to claim 1, characterized in that: The proximity switch mounting portion includes an internal thread portion provided on the inner wall of the support tube.

3. The proximity switch installation device according to claim 1, characterized in that: The proximity switch mounting portion includes an annular boss protruding from the inner wall of the support tube, and a screw hole is opened in the middle of the annular boss.

4. The proximity switch installation device according to claim 1, characterized in that: The contact pressure head includes an end head and a guide rod; The guide rod is movably embedded in the first end of the support tube, the end head is connected to the first end of the guide rod, the sensing element is arranged at the second end of the guide rod, and the end head is located outside the support tube, and the first reset element is connected to the end head and the support tube.

5. The proximity switch installation device according to claim 4, characterized in that: An annular limiting boss is provided on the inner wall of the second end of the support tube, and the guide rod is slidably embedded in the central through hole of the limiting boss. A stop flange is provided at the second end of the guide rod, and the stop flange is blocked on the side of the limiting boss away from the end head.

6. The proximity switch installation device according to claim 5, characterized in that: The first reset member is a first coil spring, which is sleeved on the guide rod, and two ends of the first coil spring are respectively in contact with the end head and the limiting boss.

7. The proximity switch mounting device according to any one of claims 1 to 6, characterized in that: The proximity switch installation device further includes a buffer bracket and a second reset member; The support tube is movably arranged on the buffer bracket, the second reset member is connected to the buffer bracket and the support tube, and the moving direction of the support tube is consistent with the moving direction of the contact pressure head.

8. The proximity switch installation device according to claim 7, characterized in that: The buffer bracket is provided with a guide through hole, and the support tube is slidably embedded in the guide through hole.

9. The proximity switch installation device according to claim 8, characterized in that: A thrust flange is provided on the outer circumferential surface of the support tube. The second reset member includes a second coil spring. The second coil spring is sleeved on the support tube, and two ends of the second coil spring are respectively in contact with the thrust flange and the buffer bracket.

10. A proximity switch assembly, characterized in that: It comprises a proximity switch and a proximity switch mounting device according to any one of claims 1 to 9; The proximity switch is installed in the support cylinder through the proximity switch installation portion, and the sensing end of the proximity switch is located in the cylinder cavity.

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