Anti-fracture piston rod

Abstract

The utility model provides an anti-fracture piston rod which comprises a connecting base, a clamping groove is formed in the top of the connecting base, a clamping block is connected to an inner cavity of the clamping groove in a sliding mode, inserting grooves are formed in the left side and the right side of the clamping block respectively, a piston outer rod is fixedly connected to the top of the clamping block, blind grooves are formed in the left side and the right side of the inner cavity of the clamping groove respectively, and the clamping block is fixedly connected with the piston outer rod. Through mutual cooperation of a round rod, a telescopic spring, an L-shaped rod, a moving block and an inserting block, connection of a piston outer rod is facilitated, the use effect of the device is improved, and through mutual cooperation of a sliding plate, a damper, a buffer spring, a sliding block, a hinge rod, a connecting shaft, a straight rod, a reset spring and a rectangular block, the device is convenient to use. The two adjacent sliding blocks move towards the sides away from each other under limiting of the adjacent second sliding grooves and the second sliding blocks through the adjacent hinge rods, then the adjacent reset springs are stretched, the piston inner rod can be conveniently buffered, breakage of the piston inner rod can be prevented, and the service life of the piston inner rod can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of piston rods, in particular to a piston rod which is resistant to breakage. Background Art

[0002] The piston rod is a connecting component that supports the piston to do work. It is mostly used in oil cylinders and air cylinder motion actuators. It is a moving component that moves frequently and has high technical requirements. Taking the hydraulic cylinder as an example, it is composed of a cylinder barrel, a piston rod (oil cylinder rod), a piston, and an end cover. The quality of its processing directly affects the life and reliability of the entire product. The processing requirements for the piston rod are high, and its surface roughness is required to be Ra0.4~0.8μm, and strict requirements are placed on coaxiality and wear resistance. The basic feature of the oil cylinder rod is the processing of a slender shaft, which is difficult to process and has always troubled processing personnel. The utility model relates to an anti-fracture piston rod.

[0003] When the existing device is in use, when the inner rod of the piston is squeezed, it is unable to buffer the inner rod of the piston, which easily causes it to break and reduces its service life.

[0004] Therefore, it is necessary to provide a piston rod that is resistant to breakage to solve the above technical problems. Utility Model Content

[0005] The utility model provides a piston rod which can prevent breakage, and solves the problem that when the inner piston rod is squeezed, the inner piston rod cannot be buffered, which easily causes the inner piston rod to break and reduces its service life.

[0006] In order to solve the above technical problems, the utility model provides a break-proof piston rod, including a connecting seat, a slot is provided on the top of the connecting seat, a card block is slidably connected to the inner cavity of the slot, slots are provided on the left and right sides of the card block, a piston outer rod is fixedly connected to the top of the card block, blind slots are provided on the left and right sides of the inner cavity of the slot, rectangular openings are provided on the top of the connecting seat near the left and right sides, the two rectangular openings are respectively connected to the adjacent blind slots, the inner cavities of the two blind slots are provided with connecting mechanisms, first sliding grooves are provided on the left and right sides of the inner cavity of the piston outer rod near the bottom, the inner cavities of the two first sliding grooves are slidably connected to first sliders, the opposite sides of the two first sliders are commonly fixedly connected to a sliding plate, a buffer mechanism is provided at the bottom of the sliding plate, and the top of the sliding plate is fixedly connected to the piston inner rod.

[0007] Preferably, the buffer mechanism includes a plurality of dampers, wherein the plurality of dampers are respectively fixedly connected to the bottom of the inner cavity of the piston outer rod near the four corners, the top ends of the plurality of dampers are respectively fixedly connected to the sliding plate, the outer sides of the plurality of dampers are respectively sleeved with buffer springs, and the top and bottom ends of the buffer springs are respectively fixedly connected to the sliding plate and the bottom of the inner cavity of the piston outer rod.

[0008] Preferably, a second sliding groove is opened on the opposite side of the bottom of the inner cavity of the sliding plate and the piston outer rod near the left and right sides, the inner cavities of the two second sliding grooves are slidably connected with second sliding blocks, and several of the second sliding blocks are fixedly connected with sliding blocks, and the opposite sides of two adjacent sliding blocks are hinged together to contain a hinged rod, and the opposite sides of the two hinged rods are movably connected together with a connecting shaft.

[0009] Preferably, a through hole is formed on several of the second sliding blocks, and a straight rod is passed through the inner cavity of the through hole, and the two ends of several of the straight rods are respectively fixedly connected to the side walls of the inner cavity of adjacent second sliding grooves, and a return spring is sleeved on the outer side of several of the straight rods, and the two ends of the return spring are respectively fixedly connected to the adjacent second sliding blocks and the side walls of the inner cavity of adjacent second sliding grooves.

[0010] Preferably, the connecting mechanism includes a rectangular block, which is fixedly connected to the bottom of the inner cavity of the right blind groove near the middle position, and a first through hole is opened at the middle position on the right side of the rectangular block, and an L-shaped rod is penetrated through the inner cavity of the first through hole, and the top of the L-shaped rod penetrates the inner cavity of the adjacent rectangular opening, and the left end of the L-shaped rod is fixedly connected to a moving block, and the left side of the moving block is fixedly connected to an insert block, and the insert block is inserted in the inner cavity of the adjacent slot.

[0011] Preferably, a third slider is fixedly connected to the top and bottom of the movable block, a third slide groove is opened at the top and bottom of the inner cavity of the blind groove near the left side, and two third sliders are movably connected to the inner cavities of adjacent third slide grooves.

[0012] Preferably, round rods are fixedly connected to the right side of the moving block near the top and the bottom, and second through holes are opened on the right side of the rectangular block near the top and the bottom. The right ends of the two round rods respectively pass through the inner cavities of adjacent through holes, and telescopic springs are sleeved on the outer sides of the two round rods, and the left and right ends of the telescopic springs are respectively fixedly connected to the moving block and the rectangular block.

[0013] Compared with the related art, the anti-fracture piston rod provided by the utility model has the following beneficial effects:

[0014] The utility model provides a piston rod which can prevent breakage. By means of the mutual cooperation of the components of a round rod, a telescopic spring, an L-shaped rod, a moving block and an inserting block, it is convenient to connect the piston outer rod, thereby improving the use effect of the device. Moreover, by means of the mutual cooperation of the components of a sliding plate, a damper, a buffer spring, a sliding block, a hinge rod, a connecting shaft, a straight rod, a reset spring and a rectangular block, when the piston inner rod is squeezed, the sliding plate can be moved downward under the limit of a first sliding groove and a first sliding block, thereby squeezing a plurality of dampers and buffer springs. Moreover, when the sliding plate moves downward, the adjacent two sliding blocks can be moved to the side away from each other under the limit of the adjacent second sliding groove and the second sliding block through the adjacent hinged rod, thereby stretching the adjacent reset spring, thereby facilitating the buffering of the piston inner rod, thereby preventing the piston inner rod from breaking and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model;

[0016] Figure 2 For this embodiment, the new Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 For this embodiment, the new Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 For this embodiment, the new Figure 3 Enlarged view of point C in the middle;

[0019] Figure 5 This is a new stereogram of the present embodiment.

[0020] Numbers in the figure: 1, connecting seat; 2, piston outer rod; 3, piston inner rod; 4, clamping block; 5, sliding plate; 6, damper; 7, buffer spring; 8, sliding block; 9, hinged rod; 10, connecting shaft; 11, straight rod; 12, return spring; 13, rectangular block; 14, L-shaped rod; 15, round rod; 16, telescopic spring; 17, moving block; 18, plug block. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in,

[0023] Figure 1 It is a cross-sectional view of the utility model;

[0024] Figure 2 For this embodiment, the new Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 For this embodiment, the new Figure 1 Enlarged view of point B in the middle;

[0026] Figure 4 For this embodiment, the new Figure 3 Enlarged view of point C in the middle;

[0027] Figure 5 This is a new stereogram of the present embodiment.

[0028] A break-proof piston rod comprises a connecting seat 1, a card slot is provided at the top of the connecting seat 1, a card block 4 is slidably connected to the inner cavity of the card slot, slots are provided on the left and right sides of the card block 4, a piston outer rod 2 is fixedly connected to the top of the card block 4, blind slots are provided on the left and right sides of the inner cavity of the card slot, rectangular openings are provided at the top of the connecting seat 1 near the left and right sides, the two rectangular openings are respectively connected to the adjacent blind slots, the inner cavities of the two blind slots are provided with connecting mechanisms, first slide grooves are provided at the left and right sides of the inner cavity of the piston outer rod 2 near the bottom, the inner cavities of the two first slide grooves are slidably connected to first sliders, the opposite sides of the two first sliders are commonly fixedly connected to a sliding plate 5, a buffer mechanism is provided at the bottom of the sliding plate 5, and the top of the sliding plate 5 is fixedly connected to the piston inner rod 3.

[0029] The buffer mechanism includes a plurality of dampers 6, which are respectively fixedly connected to the bottom of the inner cavity of the piston outer rod 2 near the four corners, the top ends of the plurality of dampers 6 are fixedly connected to the sliding plate 5, the outer sides of the plurality of dampers 6 are sleeved with buffer springs 7, and the top and bottom ends of the buffer springs 7 are respectively fixedly connected to the sliding plate 5 and the bottom of the inner cavity of the piston outer rod 2, and the sliding plate 5 and the inner cavity of the piston outer rod 2 are opposite to each other. The bottom side of the inner cavity is provided with a second slide groove near the left and right sides, and the inner cavities of the two second slide grooves are slidably connected with a second slider, and the plurality of second sliders are fixedly connected with the sliding Block 8, the opposite sides of two adjacent sliding blocks 8 are hinged together to contain a hinge rod 9, the opposite sides of the two hinge rods 9 are movably connected together with a connecting shaft 10, a number of second sliding blocks are provided with through holes, and the inner cavity of the through holes is penetrated by a straight rod 11, the two ends of the several straight rods 11 are respectively fixedly connected to the side walls of the adjacent second sliding groove inner cavity, the outer sides of the several straight rods 11 are sleeved with a return spring 12, and the two ends of the return spring 12 are respectively fixedly connected to the adjacent second sliding blocks and the side walls of the adjacent second sliding groove inner cavity, so as to buffer the inner rod of the piston, prevent it from breaking, and extend its service life.

[0030] The connecting mechanism includes a rectangular block 13, which is fixedly connected to the bottom of the inner cavity of the right blind groove near the middle position, a first through hole is opened at the middle position on the right side of the rectangular block 13, an L-shaped rod 14 is passed through the inner cavity of the first through hole, the top of the L-shaped rod 14 passes through the inner cavity of the adjacent rectangular opening, a moving block 17 is fixedly connected to the left end of the L-shaped rod 14, an insert block 18 is fixedly connected to the left side of the moving block 17, and the insert block 18 is inserted into the inner cavity of the adjacent slot, and the top and bottom of the inner cavity of the blind groove are fixedly connected to the third slider. A third slide groove is opened near the left side of the part, and two third sliding blocks are movably connected to the inner cavity of the adjacent third slide grooves. A round rod 15 is fixedly connected to the right side of the moving block 17 near the top and bottom. A second through hole is opened at the right side of the rectangular block 13 near the top and bottom. The right ends of the two round rods 15 respectively penetrate the inner cavity of the adjacent through holes. The outer side of the two round rods 15 is sleeved with a telescopic spring 16, and the left and right ends of the telescopic spring 16 are respectively fixedly connected to the moving block 17 and the rectangular block 13, which is convenient for connecting the piston outer rod and improving the use effect of the device.

[0031] The working principle of a break-proof piston rod provided by the utility model is as follows:

[0032] When the utility model is in use, when the piston outer rod 2 needs to be installed, the adjacent L-shaped rod 14 is moved to the side away from each other, so that the moving block 17 fixed on the adjacent L-shaped rod 14 moves to the side away from each other under the limit of the adjacent third slide groove and the third slide block, so that the plug-in block 18 fixed on the adjacent moving block 17 moves and slides to the side away from each other, and the clamping block 4 fixed on the piston outer rod 2 is inserted into the inner cavity of the clamping groove, and then the adjacent L-shaped rod 14 is released so that the plug-in block 18 fixed on the adjacent moving block 17 is inserted into the inner cavity of the clamping groove under the elastic force of the adjacent telescopic spring 16. The inner cavity of the adjacent slot is convenient for installing the piston outer rod 2, thereby improving the use effect of the device. When the piston inner rod 3 is subjected to external force, the sliding plate 5 moves downward under the limit of the first slide groove and the first slider, thereby squeezing a plurality of dampers 6 and buffer springs 7. When the sliding plate 5 moves downward, the two adjacent sliding blocks 8 are moved to the opposite side under the limit of the adjacent second slide groove and the second slider through the adjacent hinged rod 9, thereby stretching the adjacent return spring 12, which is convenient for buffering the piston inner rod 3, can prevent it from breaking, and extend its service life.

[0033] Compared with the related art, the anti-fracture piston rod provided by the utility model has the following beneficial effects:

[0034] Through the mutual cooperation of the round rod 15, telescopic spring 16, L-shaped rod 14, moving block 17 and insert block 18, it is convenient to connect the piston outer rod 2 and improve the use effect of the device. Through the mutual cooperation of the sliding plate 5, damper 6, buffer spring 7, sliding block 8, hinged rod 9, connecting shaft 10, straight rod 11, return spring 12 and rectangular block 13, when the piston inner rod 3 is squeezed, the sliding plate 5 can move downward under the limit of the first slide groove and the first slider, thereby squeezing a plurality of dampers 6 and buffer springs 7. When the sliding plate 5 moves downward, the adjacent two sliding blocks 8 are moved to the side away from each other under the limit of the adjacent second slide groove and the second slider through the adjacent hinged rod 9, thereby stretching the adjacent return spring 12, which is convenient for buffering the piston inner rod 3, can prevent it from breaking and extend its service life.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A break-resistant piston rod, comprising a connecting seat (1), characterized in that: The top of the connecting seat (1) is provided with a card slot, the inner cavity of the card slot is slidably connected with a card block (4), the left and right sides of the card block (4) are provided with slots, the top of the card block (4) is fixedly connected with a piston outer rod (2), the left and right sides of the inner cavity of the card slot are provided with blind slots, the top of the connecting seat (1) is provided with rectangular openings near the left and right sides, the two rectangular openings are respectively connected with adjacent blind slots, the inner cavities of the two blind slots are provided with connecting mechanisms, the left and right sides of the inner cavity of the piston outer rod (2) are provided with first sliding grooves near the bottom, the inner cavities of the two first sliding grooves are slidably connected with first sliders, and the two The opposite sides of the first sliding blocks are commonly fixedly connected with a sliding plate (5), the bottom of the sliding plate (5) is provided with a buffer mechanism, and the top of the sliding plate (5) is fixedly connected with a piston inner rod (3); the opposite sides of the bottom of the inner cavity of the sliding plate (5) and the piston outer rod (2) are provided with a second sliding groove near the left and right sides, the inner cavities of the two second sliding grooves are slidably connected with a second sliding block, and a plurality of the second sliding blocks are fixedly connected with a sliding block (8), the opposite sides of two adjacent sliding blocks (8) are commonly hinged with a hinged rod (9), and the opposite sides of the two hinged rods (9) are commonly movably connected with a connecting shaft (10).

2. A break-resistant piston rod according to claim 1, characterized in that: The buffer mechanism comprises a plurality of dampers (6), wherein the plurality of dampers (6) are respectively fixedly connected to the bottom of the inner cavity of the piston outer rod (2) near the four corners, the top ends of the plurality of dampers (6) are respectively fixedly connected to the sliding plate (5), the outer sides of the plurality of dampers (6) are respectively sleeved with a buffer spring (7), and the top and bottom ends of the buffer spring (7) are respectively fixedly connected to the sliding plate (5) and the bottom of the inner cavity of the piston outer rod (2).

3. A break-resistant piston rod according to claim 1, characterized in that: A plurality of the second sliding blocks are provided with through holes, and a straight rod (11) is passed through the inner cavity of the through hole, and the two ends of the plurality of the straight rods (11) are respectively fixedly connected to the side walls of the inner cavity of the adjacent second sliding groove, and a return spring (12) is sleeved on the outer side of the plurality of the straight rods (11), and the two ends of the return spring (12) are respectively fixedly connected to the adjacent second sliding block and the side walls of the inner cavity of the adjacent second sliding groove.

4. A break-resistant piston rod according to claim 1, characterized in that: The connection mechanism comprises a rectangular block (13), the rectangular block (13) being fixedly connected to the bottom of the inner cavity of the right blind slot near the middle position, a first through hole being opened at the middle position on the right side of the rectangular block (13), an L-shaped rod (14) passing through the inner cavity of the first through hole, the top end of the L-shaped rod (14) passing through the inner cavity of the adjacent rectangular opening, a moving block (17) being fixedly connected to the left end of the L-shaped rod (14), an inserting block (18) being fixedly connected to the left side of the moving block (17), and the inserting block (18) being inserted into the inner cavity of the adjacent slot.

5. A break-resistant piston rod according to claim 4, characterized in that: The top and bottom of the moving block (17) are fixedly connected with a third sliding block, the top and bottom of the inner cavity of the blind groove are provided with a third sliding groove near the left side, and the two third sliding blocks are movably connected to the inner cavities of adjacent third sliding grooves.

6. A break-resistant piston rod according to claim 4, characterized in that: The right side of the moving block (17) is fixedly connected to a round rod (15) near the top and the bottom, and the right side of the rectangular block (13) is provided with a second through hole near the top and the bottom. The right ends of the two round rods (15) respectively penetrate the inner cavity of the adjacent through holes. The outer sides of the two round rods (15) are sleeved with a telescopic spring (16), and the left and right ends of the telescopic spring (16) are fixedly connected to the moving block (17) and the rectangular block (13) respectively.

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