Oil cylinder with displacement detection structure

Abstract

The utility model discloses an oil cylinder with a displacement detection structure, and relates to the technical field of oil cylinders and accessories thereof. The oil cylinder comprises an oil cylinder body, wherein an oil cylinder frame is clamped on the outer side of the oil cylinder body; a feedback assembly is fixedly installed at the top shaft end of a piston rod of the oil cylinder body and comprises a cover plate connected to the top shaft end of the piston rod in a sleeving mode, a side plate is further fixedly installed on the side wall of the top of the cover plate, a feedback plate is embedded in the bottom side wall of the edge of the side plate, and a detection assembly is installed on the bottom side wall of the oil cylinder frame. The detection assembly comprises a mounting plate inserted into the lock rod, an infrared distance meter is further mounted in the box body, and the box body and the side plate are further connected through a protection assembly. The detection assembly is installed on the oil cylinder frame in a sliding insertion mode, the feedback assembly is fixed to the shaft end of the piston rod through the locking piece, the installation mode is simple and convenient, and infrared light beams of an infrared distance meter in the detection assembly are protected and prevented from being shielded through the protection assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil cylinders and accessories thereof, in particular to an oil cylinder with a displacement detection structure. Background Art

[0002] The oil cylinder is a hydraulic cylinder, which mainly consists of two parts: the cylinder body and the piston rod. It is the most common in mechanical engineering. The extension length of the hydraulic cylinder is mostly detected by an infrared rangefinder or a ruler.

[0003] A Chinese patent application (or patent) with announcement number CN221347492U discloses a high-precision oil cylinder displacement detection device, comprising: a mounting seat is provided on the side of the hydraulic oil cylinder, a through hole is opened on the side of the mounting seat, a base can be inserted into the through hole, a displacement detection device is provided on the surface of the base, a traction plate is sleeved on the surface of the vertical rod, and a limit plate is provided at one end of the traction plate; the beneficial effect is: first, the positioning cover is removed and then the traction plate is pulled to disengage from the through hole of the limit plate, so that the limit plate can be disengaged from the limit groove and the limit plate can lose its limiting effect on the base, and then the displacement detection device can be directly taken out for maintenance, which is more convenient. This avoids the problem that most displacement detection devices set on the side of the hydraulic oil cylinder are fixed with multiple sets of bolts. When the displacement detection device needs to be repaired, it is necessary to find tools to turn multiple sets of bolts to remove the displacement detection device for maintenance, which is more troublesome.

[0004] The above-mentioned high-precision oil cylinder displacement detection device has a mounting seat and a base for installing a displacement detection device on the surface of its hydraulic cylinder, wherein the displacement detection device is removed by opening the positioning cover and pulling out the traction plate from the mounting seat. However, since the mounting seat is also an additional structure in the application, and the original outer wall of the hydraulic oil cylinder is smooth, it is still difficult to achieve the problem of rapid disassembly and assembly of the displacement detection device; and, a detection device for detecting the extended displacement length of the piston rod of the hydraulic oil cylinder is provided thereon, and the detection device is divided into a test end and a feedback end, wherein the feedback end is installed at the end of the piston rod shaft of the oil cylinder, and the test end is installed on the outer wall of the cylinder body, and the two are opposite to each other, and there is no protective structure between the test end and the feedback end, so when the two are blocked by other objects, it will cause the detection data results to be inaccurate. To this end, we provide an oil cylinder with a displacement detection structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an oil cylinder with a displacement detection structure. The detection component is installed on the oil cylinder frame by sliding and inserting, and the feedback component is fixed to the axial end of the piston rod by a locking member. The installation method is simple and convenient. The infrared beam of the infrared rangefinder in the detection component can be protected by the protective component to avoid being blocked, thereby solving the problems of the above-mentioned high-precision oil cylinder displacement detection device.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model discloses an oil cylinder with a displacement detection structure, comprising an oil cylinder body, an oil cylinder frame being clamped on the outer side of the oil cylinder body; a feedback assembly is fixedly installed on the top shaft end of the piston rod of the oil cylinder body, the feedback assembly comprises a cover plate sleeved on the top shaft end of the piston rod, and clamping pieces are inserted on both sides of the cover plate, the cover plate is detachably fixedly connected to the outer wall of the piston rod through the clamping piece, a side plate is also fixedly installed on the top side wall of the cover plate, and a feedback plate is inlaid on the bottom side wall at the edge of the side plate, a detection assembly is installed on the bottom side wall of the oil cylinder frame, the detection assembly comprises a mounting plate plugged into the locking rod of the oil cylinder frame, a box is welded on the outer wall of the mounting plate, and an infrared rangefinder is also installed inside the box, the box and the side plates are also connected by a protective assembly, the protective assembly comprises a protective plate fixedly connected to the box, a plurality of protective plates are provided, and the plurality of protective plates are plugged into each other, and a plate groove is also provided inside the protective plate.

[0008] The utility model is further configured as follows: the oil cylinder body includes a cylinder body and a piston rod, the bottom side wall of the cylinder body is clamped with the bottom frame in the oil cylinder frame, and the top outer wall of the cylinder body is clamped with a top frame, and the top frame and the bottom frame are fixedly connected by a locking rod.

[0009] The utility model is further configured such that a through slot is provided on the mounting plate, and the mounting plate is plugged into the locking rod through the through slot; a box slot is provided inside the box body, and a box cover is provided on the top of the box slot, and a through slot is provided on the box cover.

[0010] The utility model is further configured such that the infrared rangefinder is fixedly mounted on the bottom side wall of the box slot, and the detection port of the infrared rangefinder is arranged vertically upward, the detection port of the infrared rangefinder is also arranged opposite to the penetration slot, and the penetration slot is also arranged opposite to the feedback plate.

[0011] The utility model is further configured such that a limiting strip is welded on the bottom peripheral side wall of the protective plate in the protective assembly, and a mounting strip is welded on the top peripheral side wall of the smallest protective plate, and the protective plate is fixedly connected to the mounting frame on the bottom side wall of the side plate through the mounting strip.

[0012] The utility model is further configured such that one of the protective plates is slidably plugged into a plate groove inside another adjacent protective plate through a limiting strip on its bottom side wall, and the bottom end of the largest protective plate is fixedly connected to the box cover by bolts.

[0013] The utility model is further configured as follows: a side groove is provided on the top outer side wall of the cover plate, and the side groove is fixedly connected to the side plate by bolts, the outer edge bottom side wall of the side plate is fixedly connected to the mounting frame by bolts, and a feedback plate is clamped in the mounting frame, the bottom inner wall of the cover plate is bonded to the anti-slip pad, and the cover plate is clamped to the top shaft end of the piston rod through the anti-slip pad.

[0014] The utility model is further configured such that screw holes are opened in the left and right side walls of the cover plate, and the outer side walls corresponding to the screw holes of the cover plate are welded to the screw sleeves in the clamping piece, a stud is also threadedly connected in the screw sleeve, one end of the stud is arranged on the inner side of the cover plate and is sleeved with the screw sleeve, and the other end of the stud is welded with a hand-held plate.

[0015] The utility model has the following beneficial effects:

[0016] The utility model provides a detection component and a feedback component, and a cylinder frame is provided on the outside of the cylinder body. The cylinder frame and the cylinder body are both existing technologies. The mounting plate in the detection component is slidably inserted on the locking rod of the cylinder frame, and the feedback component is sleeved on the top shaft end of the piston rod, and the feedback component is positioned by a clamping part. At the same time, the feedback component and the detection component are relatively arranged, and the installation method is simple and convenient.

[0017] The utility model provides a protection component, which is arranged between the detection component and the feedback component. The protection plates in the protection component are hollow in structure, and the multiple protection plates are nested and slidably inserted with each other. When the oil cylinder body is working, the piston rod on the shaft end thereof extends from or retracts from the oil cylinder body, and the protection plates in the protection component can cooperate with it to perform compression and extension actions. Since the protection plate itself has a hollow structure, the plate groove inside the protection plate can be used by the infrared light beam of the infrared rangefinder to shuttle, so that the normal operation of the infrared rangefinder will not be affected, and the infrared light beam of the infrared rangefinder is protected to avoid being blocked.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural schematic diagram of an oil cylinder with a displacement detection structure.

[0021] Figure 2 It is a structural diagram of the cylinder body and cylinder frame.

[0022] Figure 3 It is a structural diagram of the detection component, protection component and feedback component.

[0023] Figure 4 This is a structural disassembly diagram of the detection component.

[0024] Figure 5 This is a structural disassembly diagram of the protective component.

[0025] Figure 6 This is a structural disassembly diagram of the feedback component.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1-Cylinder body, 101-Cylinder body, 102-Piston rod, 2-Cylinder frame, 201-Top frame, 202-Locking rod, 203-Base frame, 3-Detection assembly, 301-Mounting plate, 301a-Through slot, 302-Box body, 302a-Box slot, 302b-Box cover, 302c-Penetration slot, 303-Infrared rangefinder, 4-Protection assembly, 401-Protection plate, 401a-Board slot, 402-Limiting bar, 403-Mounting bar, 5-Feedback assembly, 501-Cover, 501a-Side slot, 501b-Anti-slip pad, 502-Clamping piece, 502a-Stud, 502b-Handheld plate, 502c-Abutment ring, 502d-Screw sleeve, 503-Side plate, 503a-Mounting frame, 503b-Feedback plate. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1, please refer to Figure 1-2The utility model is an oil cylinder with a displacement detection structure, comprising an oil cylinder body 1 and an oil cylinder frame 2 installed on the outside of the oil cylinder body 1, and the oil cylinder frame 2 can protect the oil cylinder body 1.

[0030] Specifically, the cylinder body 1 includes a cylinder body 101 and a piston rod 102, wherein the bottom outer wall of the cylinder body 101 is clamped with the base frame 203 in the cylinder frame 2, and the top outer part of the cylinder body 101 is clamped with a top frame 201, wherein the top frame 201 and the base frame 203 are locked and connected by a locking rod 202.

[0031] Furthermore, there are six locking rods 202 in total, which are arranged in a ring array structure, and both ends of the locking rods 202 are connected to the top frame 201 and the bottom frame 203 respectively through screw sleeves.

[0032] Example 2, please refer to Figure 4 and Figure 6 On the basis of Example 1, a detection component 3 and a feedback component 5 are further provided. The infrared rangefinder 303 in the detection component 3 can generate an infrared beam, and the feedback plate 503b in the feedback component 5 opposite thereto can intercept the infrared beam, thereby realizing the detection of the moving distance of the piston rod 102 of the cylinder body 1.

[0033] Specifically, the detection component 3 includes a mounting plate 301, which is plugged into the locking rod 202 through a cylindrical groove 301a. A box 302 for installing an infrared rangefinder 303 is also installed on the outer wall of the mounting plate 301. The feedback component 5 includes a cover plate 501 covering the axial end of the piston rod 102. The cover plate 501 is fixedly mounted on the piston rod 102 by locking members 502 inserted on both sides thereof. At the same time, a side plate 503 is fixedly mounted on the top side of the cover plate 501, and a feedback plate 503b is fixedly mounted on the bottom side wall of the side plate 503, wherein the feedback plate 503b and the infrared rangefinder 303 are arranged opposite to each other.

[0034] Furthermore, the interior of the box body 302 is provided with a box slot 302a for placing the infrared rangefinder 303, the top cover of the box slot 302a is provided with a box cover 302b, and the box cover 302b is provided with a penetration slot 302c for the infrared beam generated by the infrared rangefinder 303 to pass through, the top side wall of the cover plate 501 is provided with a side slot 501a for connecting with the side plate 503, and the inner wall of the cover plate 501 is also bonded with an anti-slip pad 501b, and the locking member 502 includes a welding The screw sleeve 502d on the outer wall of the cover 501 has a stud 502a threadedly connected to the screw sleeve 502d. The stud 502a also passes through the box cover 501 and extends into the interior of the box cover 501. The end of the stud 502a at this end is sleeved with an abutment ring 502c. A hand-held plate 502b is welded to the outer wall of the other end of the stud 5402a. A mounting frame 503a is fixedly installed on the bottom side wall of the outer edge of the side panel 503, and a feedback plate 503b is clamped in the mounting frame 503a.

[0035] The operating process of this embodiment is as follows: when in use, the infrared rangefinder 303 generates an infrared beam, which is vertically upward and contacts the feedback plate 503b. When the cylinder body 1 is not working, that is, when the piston rod 102 is not extended, in this state, the distance data detected by the infrared rangefinder 303 is reset to zero, and then as the piston rod 102 is extended, the cover plate 501 installed on the axial end of the piston rod 102 also moves accordingly, and the distance data detected by the infrared rangefinder 303 gradually expands, that is, the displacement distance of the piston rod 102 of the cylinder body 1 is detected.

[0036] Example 3, please refer to Figure 5 On the basis of Examples 1 and 2, a protective component 4 is further provided. By utilizing protective plates 401 that slide into each other, the extension or retraction of the cylinder body 1 can be coordinated to be stretched or compressed, and the plate groove 401a in the protective plate 401 can also protect the infrared light beam generated by the infrared rangefinder 303 from being blocked.

[0037] Specifically, the protection assembly 4 includes a plurality of protection plates 401 , wherein the protection plates 401 are socketed with each other, a plate groove 401 a is provided inside the protection plate 401 , and a mounting bar 403 is welded to the top side wall of the topmost protection plate 401 .

[0038] Furthermore, the bottom side wall of the lowest and largest protective plate 401 is fixedly connected to the box cover 302b by bolts, and the plate slot 401a in the protective plate 401 is arranged opposite to the penetrating slot 302c in the box cover 302b. At the same time, the mounting strip 403 on the topmost and smallest protective plate 401 is fixedly connected to the mounting frame 503a by bolts. At the same time, the plate slot 401a in the protective plate 401 at this end is arranged opposite to the feedback plate 503b, and a limiting strip 402 is welded at the end of the adjacent sliding protective plate 401. One of the two adjacent protective plates 401 slides with the inner wall of the plate slot 401a in the other protective plate 401 through the limiting strip 402 on the end.

[0039] The operating process of this embodiment is as follows: when the piston rod 102 of the cylinder body 1 is displaced, it pulls the cover plate 501 on its shaft end to move, and because the protective plate 401 is fixedly connected to the mounting frame 503a on the cover plate 501, the topmost protective plate 401 will also be pulled to move, and because multiple protective plates 401 are interconnected, the protective plates 401 are pulled by the piston rod 102 to be elongated or compressed, and because the infrared light beam generated by the infrared rangefinder 303 is in the plate groove 401a of the protective plate 401, the infrared light beam used for ranging will not be affected by the external environment.

[0040] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cylinder with a displacement detection structure, comprising a cylinder body (1), wherein a cylinder frame (2) is provided on the outer side of the cylinder body (1); characterized in that: A feedback assembly (5) is fixedly mounted on the top shaft end of the piston rod (102) of the oil cylinder body (1), and the feedback assembly (5) comprises a cover plate (501) sleeved on the top shaft end of the piston rod (102), and clamping members (502) are inserted on both sides of the cover plate (501), and the cover plate (501) is detachably fixedly connected to the outer wall of the piston rod (102) through the clamping members (502), and a side plate (503) is also fixedly mounted on the top side wall of the cover plate (501), and a feedback plate (503b) is embedded on the bottom side wall at the edge of the side plate (503), and a detection assembly (3) is mounted on the bottom side wall of the oil cylinder frame (2). The detection assembly (3) includes a mounting plate (301) plugged into a locking rod (202) of the oil cylinder frame (2); a box (302) is welded to the outer wall of the mounting plate (301); an infrared rangefinder (303) is also installed inside the box (302); the box (302) and the side plate (503) are connected via a protective assembly (4); the protective assembly (4) includes a protective plate (401) fixedly connected to the box (302); a plurality of protective plates (401) are provided, and the plurality of protective plates (401) are plugged into each other; a plate slot (401a) is also provided inside the protective plate (401).

2. The oil cylinder with a displacement detection structure according to claim 1, characterized in that: The oil cylinder body (1) comprises a cylinder body (101) and a piston rod (102); the bottom side wall of the cylinder body (101) is clamped with a bottom frame (203) in the oil cylinder frame (2); and the top outer wall of the cylinder body (101) is clamped with a top frame (201); the top frame (201) and the bottom frame (203) are fixedly connected via a locking rod (202).

3. The oil cylinder with a displacement detection structure according to claim 1, characterized in that: The mounting plate (301) is provided with a through slot (301a), and the mounting plate (301) is plugged into the locking rod (202) through the through slot (301a). The box body (302) is provided with a box slot (302a) inside, and a box cover (302b) is provided on the top of the box slot (302a), and a through slot (302c) is provided on the box cover (302b).

4. The oil cylinder with a displacement detection structure according to claim 3, characterized in that: The infrared rangefinder (303) is fixedly mounted on the bottom side wall of the box slot (302a), and the detection port of the infrared rangefinder (303) is arranged vertically upward. The detection port of the infrared rangefinder (303) is also arranged opposite to the penetration slot (302c), and the penetration slot (302c) is also arranged opposite to the feedback plate (503b).

5. The oil cylinder with a displacement detection structure according to claim 1, characterized in that: A limiting strip (402) is welded on the bottom peripheral side wall of the protective plate (401) in the protective assembly (4), and a mounting strip (403) is welded on the top peripheral side wall of the smallest protective plate (401). The protective plate (401) is fixedly connected to the mounting frame (503a) on the bottom side wall of the side plate (503) via the mounting strip (403).

6. The oil cylinder with a displacement detection structure according to claim 5, characterized in that: One of the protective plates (401) is slidably plugged into a plate slot (401a) inside another adjacent protective plate (401) via a limiting strip (402) on its bottom side wall, and the bottom end of the largest protective plate (401) is fixedly connected to the box cover (302b) via bolts.

7. The oil cylinder with a displacement detection structure according to claim 1, characterized in that: A side groove (501a) is provided on the top outer side wall of the cover plate (501), and the side groove (501a) is fixedly connected to the side plate (503) by bolts, the outer edge bottom side wall of the side plate (503) is fixedly connected to the mounting frame (503a) by bolts, and a feedback plate (503b) is clamped in the mounting frame (503a), the bottom inner wall of the cover plate (501) is bonded to the anti-slip pad (501b), and the cover plate (501) is clamped to the top shaft end of the piston rod (102) via the anti-slip pad (501b).

8. The oil cylinder with a displacement detection structure according to claim 1, characterized in that: Screw holes are provided in the left and right side walls of the cover plate (501), and the outer side walls corresponding to the screw holes of the cover plate (501) are welded to the screw sleeves (502d) in the clamping member (502), and a stud (502a) is also threadedly connected to the screw sleeve (502d). The stud (502a) is arranged on one end of the inner side of the cover plate (501) and is sleeved with the screw sleeve (502d), and the other end of the stud (502a) is welded to a handheld plate (502b).

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