Guiding self-locking type hydraulic cylinder

Abstract

The utility model discloses a guiding self-locking type hydraulic cylinder which comprises a hydraulic cylinder body and a guiding limiting assembly, the hydraulic cylinder body comprises a piston rod in the hydraulic cylinder body, and the guiding limiting assembly comprises fixing seats movably installed on the two sides of the upper end of the hydraulic cylinder body and installation columns fixedly installed at the upper ends of the fixing seats. According to the guiding self-locking type hydraulic cylinder, when the piston rod at the upper end of the hydraulic cylinder body is lifted, the movable sleeve installed at the outer end of the piston rod drives the movable column in the installation column to be lifted, and after lifting, the movable column is pressed on the sliding block between the first screws through the two sides of the movable column, so that guiding and limiting of the stroke of the piston rod are completed; and first screws mounted in first threaded holes in the two sides of the mounting column can also conveniently adjust the stroke guide limiting position of the piston rod after lifting adjustment, so that the hydraulic cylinder body can be flexibly and rapidly adjusted according to operation requirements, and the practicability of the hydraulic cylinder body in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder parts, in particular to a guided self-locking hydraulic cylinder. Background Art

[0002] Hydraulic cylinder is an important component widely used in modern industrial hydraulic industry. Guided self-locking hydraulic cylinder casting is a specially designed hydraulic cylinder component. Its main feature lies in its unique guided self-locking function. The design of this casting enables the hydraulic cylinder to achieve precise positioning and stable operation during operation, while ensuring its safety and reliability during use.

[0003] Existing guided self-locking hydraulic cylinder castings, such as the one disclosed in publication number CN215257126U, have the advantages of effectively protecting the piston rod from damage and extending its service life. However, this hydraulic cylinder casting is not convenient for flexibly adjusting the self-locking position of the piston rod, thereby reducing its practicality in operation. For this reason, we propose a guided self-locking hydraulic cylinder. Utility Model Content

[0004] The main purpose of the utility model is to provide a guided self-locking hydraulic cylinder, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A guided self-locking hydraulic cylinder comprises a hydraulic cylinder body and a guide limit assembly, the hydraulic cylinder body comprises a piston rod inside it, the guide limit assembly comprises a fixed seat movably installed on both sides of the upper end of the hydraulic cylinder body, and a mounting column fixedly installed on the upper end of the fixed seat, the mounting column is also provided with a mounting cavity, a movable column is movably installed in the mounting cavity, and the movable column is a T-shaped column structure, a movable sleeve is movably installed at the outer end of the piston rod, sliding grooves are also provided on both sides of the mounting column, and the sliding grooves are a cross-shaped structure, a sliding block is movably installed in the sliding groove, a first threaded hole is also penetrated in the mounting column at the top of the sliding groove, and a first screw is movably installed in the first threaded hole.

[0007] Preferably, the guide and limiting assembly further comprises restraining openings provided in the movable columns, and both sides of the movable sleeve are movably mounted in the restraining openings.

[0008] Preferably, the guide and limiting assembly further comprises second threaded holes penetrating through both sides of the center of the movable sleeve, and a second screw movably installed in the second threaded hole on one side of the movable sleeve.

[0009] Preferably, the guide and limit assembly further comprises a mounting hole formed in the piston rod, and the mounting hole matches the second screw.

[0010] Preferably, the guide and limiting assembly further includes third screws movably mounted on both sides of the upper end of the fixing seat.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, when the piston rod at the upper end of the hydraulic cylinder body is lifted, the movable sleeve installed at its outer end will drive the movable column in the mounting column to be lifted, and after lifting, the slider between the first screws is pressed on both sides of the movable column to complete the guide limit of the piston rod stroke, and the first screws installed in the first threaded holes on both sides of the mounting column can also conveniently realize the adjustment of the piston rod stroke guide limit position after the lifting and lowering adjustment, so as to facilitate flexible and fast adjustment according to the working requirements, so as to increase the practicality of the hydraulic cylinder body in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is the adjustment diagram of the piston rod of the utility model;

[0015] Figure 3 This is a disassembly diagram of the fixing base and the mounting column of the utility model;

[0016] Figure 4 This is a structural diagram of the fixing base and the mounting column of the utility model;

[0017] Figure 5 It is a cross-sectional view of the installation column and the movable column of the utility model.

[0018] Reference numerals:

[0019] 100, hydraulic cylinder body; 101, piston rod;

[0020] 200, guide self-locking component; 201, fixed seat; 202, mounting column; 203, mounting cavity; 204, movable column; 205, movable sleeve; 206, slide groove; 207, slider; 208, first threaded hole; 209, first screw; 210, restraining mouth; 211, second threaded hole; 212, second screw; 213, mounting hole; 214, third screw. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Embodiment 1:

[0023] like Figure 1-5As shown, the present embodiment provides a guide self-locking hydraulic cylinder, including a hydraulic cylinder body 100 and a guide limit assembly 200, the hydraulic cylinder body 100 includes a piston rod 101 inside it, the guide limit assembly 200 includes a fixed seat 201 movably installed on both sides of the upper end of the hydraulic cylinder body 100, and a mounting column 202 fixedly installed on the upper end of the fixed seat 201, a mounting cavity 203 is also provided in the mounting column 202, a movable column 204 is movably installed in the mounting cavity 203, and the movable column 204 is a T-shaped column structure, a movable sleeve 205 is movably installed at the outer end of the piston rod 101, a slide groove 206 is also provided on both sides of the mounting column 202, and the slide groove 206 is a cross-shaped structure, a slider 207 is movably installed in the slide groove 206, and the top of the slide groove 206 A first threaded hole 208 is also formed through the mounting column 202, and a first screw 209 is movably installed in the first threaded hole 208. The guide and limit assembly 200 also includes a restraining opening 210 formed in the movable column 204, and both sides of the movable sleeve 205 are movably installed in the restraining opening 210. The guide and limit assembly 200 also includes a second threaded hole 211 formed through both sides of the center of the movable sleeve 205, and a second screw 212 movably installed in the second threaded hole 211 on one side of the movable sleeve 205. The guide and limit assembly 200 also includes a mounting hole 213 formed in the piston rod 101, and the mounting hole 213 matches the second screw 212. The guide and limit assembly 200 also includes a third screw 214 movably installed on both sides of the upper end of the fixed seat 201.

[0024] Specifically, the hydraulic cylinder is an important component widely used in the modern industrial hydraulic industry. The guided self-locking hydraulic cylinder casting is a specially designed hydraulic cylinder component. Its main feature lies in its unique guided self-locking function. The design of the casting enables the hydraulic cylinder to achieve positioning and operation during operation, while ensuring its safety and reliability during use. When the piston rod 101 at the upper end of the hydraulic cylinder body 100 is lifted, the movable sleeve 205 installed at its outer end will drive the movable column 204 in the mounting column 202 to lift, and after lifting, the slider 207 between the first screws 209 is pressed on both sides of the movable column 204 to complete the guided limit of the stroke of the piston rod 101, and the first threaded holes 202 on both sides of the mounting column 202 are fixed. The first screw 209 installed in 8 can also conveniently realize the adjustment of the stroke guide limit position of the piston rod 101 after the lifting adjustment, so as to facilitate its flexible and fast adjustment according to the working requirements, so as to increase the practicality of the hydraulic cylinder body 100 in use. The sliders 207 movably installed in the slide grooves 206 on both sides of the mounting column 202 are mainly used for positioning the moving position of the movable column 204 in the mounting column 202, so as to cooperate with the height of the first screw 209 to realize the adjustment of the guide position of the piston rod 101. The second screw 212 is mainly used for the installation and fixation of the movable sleeve 205 on the upper end of the piston rod 101. The third screw 214 installed on the upper end of the fixed seat 201 is mainly used for fixing the fixed seat 201 on the upper end of the hydraulic cylinder body 100.

[0025] The working principle and use process of this utility model:

[0026] When the piston rod 101 inside the hydraulic cylinder body 100 is lifted, the movable sleeve 205 on the outside of the piston rod 101 will move along the restraining opening 210 inside the movable column 204, and after moving to the top of the restraining opening 210, it will drive the movable column 204 to move upward as a whole. When the movable column 204 moves upward, it will also drive the sliders 207 in the slide grooves 206 on both sides to move upward. After the sliders 207 move to the bottom of the first screws 209, the lifting height of the piston rod 101 will be limited. The limit height of the piston rod 101 during use can also be adjusted by turning the first screws 209 in the first threaded holes 208 on both sides of the mounting column 202, so as to realize flexible and convenient adjustment of its limit height.

[0027] Although the embodiments of the present invention 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 purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A guided self-locking hydraulic cylinder, comprising a hydraulic cylinder body (100) and a guided limit assembly (200), wherein the hydraulic cylinder body (100) comprises a piston rod (101) therein, and is characterized in that: The guide limit assembly (200) comprises a fixed seat (201) movably installed on both sides of the upper end of the hydraulic cylinder body (100), and a mounting column (202) fixedly installed on the upper end of the fixed seat (201); a mounting cavity (203) is provided in the mounting column (202); a movable column (204) is movably installed in the mounting cavity (203), and the movable column (204) is a T-shaped column structure; a movable sleeve (205) is movably installed at the outer end of the piston rod (101); a slide groove (206) is provided on both sides of the mounting column (202), and the slide groove (206) is a cross-shaped structure; a slider (207) is movably installed in the slide groove (206); a first threaded hole (208) is provided through the mounting column (202) at the top of the slide groove (206), and a first screw (209) is movably installed in the first threaded hole (208).

2. A guided self-locking hydraulic cylinder according to claim 1, characterized in that: The guide and limit assembly (200) further comprises a restraining opening (210) provided in each of the movable columns (204), and both sides of the movable sleeve (205) are movably mounted in the restraining opening (210).

3. A guided self-locking hydraulic cylinder according to claim 1, characterized in that: The guide and limit assembly (200) further comprises a second threaded hole (211) which is opened through both sides of the center of the movable sleeve (205), and a second screw (212) which is movably installed in the second threaded hole (211) on one side of the movable sleeve (205).

4. A guided self-locking hydraulic cylinder according to claim 1, characterized in that: The guide and limiting assembly (200) further comprises a mounting hole (213) provided in the piston rod (101), and the mounting hole (213) matches the second screw (212).

5. The guided self-locking hydraulic cylinder according to claim 1, characterized in that: The guide limit assembly (200) further comprises third screws (214) movably mounted on both sides of the upper end of the fixing seat (201).

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