Piston cylinder device with protection function

Abstract

The utility model discloses a piston cylinder device with a protection function, which comprises a frame body, a piston cylinder and a piston cylinder, the pressure applying mechanism comprises an upper oil cylinder and a lower oil cylinder; the protection mechanism comprises a first protection cover arranged on the bottom face of the top plate, a third protection cover arranged on the top face of the bottom plate and a second protection cover arranged between the top plate and the bottom plate in an up-down sliding mode, the upper oil cylinder is located in the first protection cover, and the lower oil cylinder is located in the third protection cover; the first protective cover and the second protective cover are arranged in a staggered mode, and the bottom of the second protective cover abuts against the top of the third protective cover in a pressing mode. According to the protective device, the first protective cover, the second protective cover and the third protective cover are matched to cover the protective device from the upper oil cylinder to the lower oil cylinder, so that objects in the protective mechanism are prevented from splashing out of the protective mechanism, and an operator is protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the press technical field, concretely is a piston cylinder device with protection function. BACKGROUND

[0002] In the fields of physics, chemistry, material science and earth science, extreme experimental conditions of ultrahigh temperature and high pressure are usually needed for experimental research, such as simulation of reaction conversion of crustal rock, synthesis of superhard material and new material, or compression test under ultrahigh temperature and high pressure, and in order to achieve the conditions of high temperature and high pressure, a piston cylinder device is usually used, which is also called a piston cylinder press.

[0003] A related document discloses a bidirectional piston cylinder device and a use method thereof, which comprises an upper bottom plate, a lower bottom plate, an upper oil cylinder, a lower oil cylinder, an upper piston, a lower piston, a transformer, a pressure sensor, a heating component, an upper piston seat and a pressure cavity for containing samples, and the like, which are arranged between the upper bottom plate and the lower bottom plate; the upper bottom plate and the lower bottom plate are horizontally arranged and connected through a plurality of pull rods.

[0004] During the operation of the piston cylinder device, if the oil cylinder leaks hydraulic oil, the hydraulic oil is easy to splash on the operator. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a piston cylinder device with protection function to solve at least one of the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] A piston cylinder device with protection function comprises:

[0008] A frame body comprising a top plate and a bottom plate arranged parallel to each other, the top plate being fixedly connected to the bottom plate;

[0009] A pressure applying mechanism comprising an upper oil cylinder and a lower oil cylinder, the upper oil cylinder being arranged on the bottom surface of the top plate, and the lower oil cylinder being arranged on the top surface of the bottom plate;

[0010] A protection mechanism comprising a first shield arranged on the bottom surface of the top plate, a third shield arranged on the top surface of the bottom plate, and a second shield arranged slidingly on the top plate and the bottom plate, the upper oil cylinder being located in the first shield, the lower oil cylinder being located in the third shield, the first shield and the second shield being arranged in a staggered manner, and the bottom of the second shield being pressed against the top of the third shield.

[0011] The utility model discloses a frame body is used for the installation of pressure applying mechanism and protection mechanism, pressure applying mechanism is used for the pressure to sample, through the setting of the upper oil cylinder, the pressure is applied to sample from above, through the setting of the lower oil cylinder, the pressure is applied to sample from below.

[0012] The utility model discloses a protection mechanism is used for the protection to operator, through the cooperation of first shield, second shield and third shield, can cover the device from the upper oil cylinder to lower oil cylinder, to prevent the things in protection mechanism splash to protection mechanism outside, realize the protection to operator, wherein, through the setting of first shield is used for covering the upper oil cylinder, to prevent the upper oil cylinder damage and lead to hydraulic oil splashing to the operator's body, through the setting of second shield is used for covering the sample between the upper oil cylinder and lower oil cylinder, through the setting of third shield is used for covering the lower oil cylinder, to prevent the lower oil cylinder damage and lead to hydraulic oil splashing to the operator's body.

[0013] The utility model discloses the first shield and second shield are connected in dislocation by the second shield sliding between top plate and bottom plate, and the convenient sample is placed.

[0014] Further, the first shield, the second shield and the third shield are cylindrical and coaxially arranged.

[0015] Further, the upper oil cylinder and the lower oil cylinder are coaxially arranged.

[0016] Further, the upper oil cylinder and the first shield are coaxially arranged, and the lower oil cylinder and the third shield are coaxially arranged.

[0017] Further, the second shield bottom is concave to form a positioning groove, and the third shield top is convex to form a positioning part matched with the positioning groove. When the second shield slides down and presses against the third shield, the positioning groove can be clamped on the positioning part. The positioning groove and the positioning part can guide the position of the second shield pressing against the third shield and limit the horizontal shaking of the second shield.

[0018] Further, a sealing ring is arranged between the positioning groove and the positioning part to improve the sealing between the second shield and the third shield.

[0019] Further, the second shield top is provided with a sealing ring between the second shield and the first shield. The sealing ring can provide the sealing between the first shield and the second shield.

[0020] Furthermore, the top of the second protective cover is provided with a first magnetic ring, and the bottom surface of the top plate is provided with a second magnetic ring that cooperates with the first magnetic ring. When the second protective cover rises to the top plate, the first magnetic ring and the second magnetic ring attract each other, which can attract the second protective cover to the bottom surface of the top plate, making it convenient to place the sample.

[0021] Furthermore, the bottom of the second protective cover is provided with a third magnetic ring, and the top of the third protective cover is provided with a fourth magnetic ring that cooperates with the third magnetic ring. When the second protective cover falls onto the third protective cover, the third magnetic ring and the fourth magnetic ring are in contact. Through the mutual attraction and cooperation between the third magnetic ring and the fourth magnetic ring, the second protective cover and the third protective cover can be attracted together, making the connection between the second protective cover and the third protective cover tighter.

[0022] Furthermore, the bottom of the first protective cover is provided with a fifth magnetic ring that cooperates with the third magnetic ring. When the second protective cover slides up and the first magnetic ring and the second magnetic ring are attracted together, the third magnetic ring is also in contact with the fifth magnetic ring. Through the mutual attraction and cooperation between the third magnetic ring and the fifth magnetic ring, the bottom of the first protective cover and the bottom of the second protective cover are also attracted together. Since the first protective cover is fixed to the bottom surface of the top plate, the second protective cover can be better attracted to the bottom surface of the top plate.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] (1) This utility model uses a protective mechanism to protect the operator. The first protective cover, the second protective cover and the third protective cover work together to cover the device from the upper cylinder to the lower cylinder, so as to prevent the contents of the protective mechanism from splashing out of the protective mechanism and thus protect the operator. The first protective cover is used to cover the upper cylinder to prevent the hydraulic oil from splashing onto the operator if the upper cylinder is damaged. The second protective cover is used to cover the sample located between the upper cylinder and the lower cylinder. The third protective cover is used to cover the lower cylinder to prevent the hydraulic oil from splashing onto the operator if the lower cylinder is damaged.

[0025] (2) This utility model facilitates sample placement by sliding the second protective cover between the top plate and the bottom plate and connecting the first protective cover and the second protective cover in a staggered manner. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a piston cylinder device with protective function in this embodiment;

[0027] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0028] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0029] In the diagram: 1. Top plate; 2. Bottom plate; 3. Tie rod; 4. Nut; 5. Upper cylinder; 6. Lower cylinder; 7. First protective cover; 8. Second protective cover; 9. Third protective cover; 10. Sliding sleeve; 11. Connecting rod; 12. Positioning groove; 13. Positioning part; 14. Sealing ring; 15. Sealing ring; 16. First magnetic ring; 17. Second magnetic ring; 18. Third magnetic ring; 19. Fourth magnetic ring; 20. Fifth magnetic ring. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1-3 As shown, this embodiment provides a piston cylinder device with protective function, including: a frame, a pressure application mechanism and a protective mechanism.

[0032] The frame includes a top plate 1 and a bottom plate 2 arranged parallel to each other, wherein the top plate 1 and the bottom plate 2 are fixedly connected;

[0033] In this embodiment, the top plate 1 and the bottom plate 2 can both be set horizontally.

[0034] In this embodiment, to achieve a fixed connection between the top plate 1 and the bottom plate 2, multiple vertical tie rods 3 can be installed between the top plate 1 and the bottom plate 2. The tie rods 3 are fixed to the top plate 1 and the bottom plate 2 by nuts 4. Specifically, the two ends of the tie rods 3 can pass through the top plate 1 and the bottom plate 2 respectively. The two ends of the tie rods 3 are threaded and screwed with nuts 4. The nuts 4 are used to fix the ends of the tie rods 3 to the top plate 1 and the bottom plate 2 respectively, thereby achieving a fixed connection between the top plate 1 and the bottom plate 2.

[0035] The pressure application mechanism includes an upper oil cylinder 5 and a lower oil cylinder 6. The upper oil cylinder 5 is disposed on the bottom surface of the top plate 1, and the lower oil cylinder 6 is disposed on the top surface of the bottom plate 2. The upper oil cylinder 5 squeezes the sample from above, and the lower oil cylinder 6 squeezes the sample from below. They can work together to apply pressure to the sample. A heating device can also be provided between the upper oil cylinder 5 and the lower oil cylinder 6 to heat the sample, thereby achieving high temperature and high pressure conditions.

[0036] The protection mechanism comprises a first shield 7 arranged on the bottom surface of the top plate 1, a third shield 9 arranged on the top surface of the bottom plate 2, and a second shield 8 arranged between the top plate 1 and the bottom plate 2 in a sliding manner, wherein the upper oil cylinder 5 is located in the first shield 7, the lower oil cylinder 6 is located in the third shield 9, the first shield 7 and the second shield 8 are arranged in a staggered manner, and the bottom of the second shield 8 is pressed against the top of the third shield 9.

[0037] The frame body is arranged for mounting the pressing mechanism and the protection mechanism, the pressing mechanism is arranged for pressing the sample, the upper oil cylinder 5 is arranged for pressing the sample from above, and the lower oil cylinder 6 is arranged for pressing the sample from below.

[0038] The protection mechanism is arranged for protecting the operator, the first shield 7, the second shield 8 and the third shield 9 are arranged in cooperation, the device is covered from the upper oil cylinder 5 to the lower oil cylinder 6, so that the objects in the protection mechanism are prevented from splashing out of the protection mechanism, and the operator is protected; the first shield 7 is arranged for covering the upper oil cylinder 5, so that the upper oil cylinder 5 is prevented from being damaged and causing hydraulic oil to splash on the operator, the second shield 8 is arranged for covering the sample between the upper oil cylinder 5 and the lower oil cylinder 6, and the third shield 9 is arranged for covering the lower oil cylinder 6, so that the lower oil cylinder 6 is prevented from being damaged and causing hydraulic oil to splash on the operator.

[0039] The second shield 8 is arranged between the top plate 1 and the bottom plate 2 in a sliding manner, and the first shield 7 and the second shield 8 are connected in a staggered manner, so that the sample is conveniently placed.

[0040] Further, the first shield 7, the second shield 8 and the third shield 9 are cylindrical and coaxially arranged.

[0041] Further, the upper oil cylinder 5 and the lower oil cylinder 6 are coaxially arranged.

[0042] Further, the upper oil cylinder 5 and the first shield 7 are coaxially arranged, and the lower oil cylinder 6 and the third shield 9 are coaxially arranged.

[0043] In the embodiment, the top of the first shield 7 and the top plate 1 are sealingly and fixedly connected, and the sealing and fixed connection can be achieved by glue bonding.

[0044] In the embodiment, the bottom of the third shield 9 and the bottom plate 2 are sealingly and fixedly connected, and the sealing and fixed connection can be achieved by glue bonding.

[0045] In the embodiment, the first cover 7, the second cover 8 and the third cover 9 can be transparent plastic material, transparent glass material, or stainless steel material. When the first cover 7, the second cover 8 and the third cover 9 are stainless steel material, the first cover 7 and the third cover 9 can be fixedly connected with the top plate 1 and the bottom plate 2 by welding respectively.

[0046] In the embodiment, in order to realize the up-down sliding arrangement of the second cover 8 between the top plate 1 and the bottom plate 2, a sliding sleeve 10 can be sleeved on the pull rod 3, the sliding sleeve 10 is connected with the pull rod 3 in up-down sliding mode, and then the sliding sleeve 10 is fixedly connected with the second cover 8 through a connecting rod 11, so that the second cover 8 is also connected with the pull rod 3 in sliding mode, and the pull rod 3 is fixedly connected with the top plate 1 and the bottom plate 2. Therefore, the up-down sliding arrangement of the second cover 8 between the top plate 1 and the bottom plate 2 can be realized.

[0047] In the embodiment, the outer diameter of the second cover 8 can be consistent with the outer diameter of the third cover 9, and the inner diameter of the second cover 8 can be consistent with the inner diameter of the third cover 9.

[0048] In the embodiment, the inner diameter of the second cover 8 can be greater than the outer diameter of the first cover 7.

[0049] Further, a positioning groove 12 in annular shape is formed in the bottom of the second cover 8, and a positioning portion 13 is formed on the top of the third cover 9 and matched with the positioning groove 12. When the second cover 8 is pressed against the third cover 9 by sliding downward, the positioning groove 12 can be clamped on the positioning portion 13. By matching the positioning groove 12 with the positioning portion 13, the position of the second cover 8 pressed against the third cover 9 can be guided, and the shaking of the second cover 8 in the horizontal direction can be limited.

[0050] Further, a sealing ring 14 is arranged between the positioning groove 12 and the positioning portion 13, so as to improve the sealing performance between the second cover 8 and the third cover 9.

[0051] In the embodiment, the sealing ring 14 can be coaxially fixed on the top of the positioning portion 13. When the second cover 8 falls, the sealing ring 14 can fill the gap between the positioning portion 13 and the positioning groove 12, so as to improve the sealing performance between the second cover 8 and the third cover 9.

[0052] Further, a sealing ring 15 is arranged on the top of the second cover 8, and the sealing ring 15 is located between the second cover 8 and the first cover 7. The sealing ring 15 can provide the sealing performance between the first cover 7 and the second cover 8.

[0053] In the embodiment, the sealing ring 15 can be fixed to the inner side wall of the top of the second cover 8, when the second cover 8 is pressed against the top of the third cover 9, the top of the second cover 8 still partially overlaps with the bottom of the first cover 7, the sealing ring 15 is still between the first cover 7 and the second cover 8, and the sealing ring 15 can play a certain sealing effect.

[0054] Further, the top of the second cover 8 is provided with a first magnetic ring 16, and the bottom surface of the top plate 1 is provided with a second magnetic ring 17 matched with the first magnetic ring 16, when the second cover 8 is lifted to the top plate 1, the first magnetic ring 16 and the second magnetic ring 17 are matched with each other by the setting, and the second cover 8 can be attracted to the bottom surface of the top plate 1, so that the sample is placed conveniently.

[0055] Further, the bottom of the second cover 8 is provided with a third magnetic ring 18, and the top of the third cover 9 is provided with a fourth magnetic ring 19 matched with the third magnetic ring 18, when the second cover 8 falls on the third cover 9, the third magnetic ring 18 and the fourth magnetic ring 19 are matched, the third magnetic ring 18 and the fourth magnetic ring 19 are matched with each other by the setting, and the second cover 8 and the third cover 9 can be attracted together, so that the second cover 8 and the third cover 9 are connected more closely.

[0056] Further, the bottom of the first cover 7 is provided with a fifth magnetic ring 20 matched with the third magnetic ring 18, when the second cover 8 is lifted, the first magnetic ring 16 and the second magnetic ring 17 are attracted together, the third magnetic ring 18 is also matched with the fifth magnetic ring 20, the third magnetic ring 18 and the fifth magnetic ring 20 are matched with each other by the setting, so that the bottom of the first cover 7 and the bottom of the second cover 8 are also attracted together, and the first cover 7 is fixed to the bottom surface of the top plate 1, therefore, the second cover 8 and the bottom surface of the top plate 1 can be attracted more closely.

[0057] It should be noted that, although the utility model is disclosed as above with specific embodiments, the above embodiments are not used to limit the utility model, ordinary skilled in the art can make various changes and decorations without departing from the spirit and scope of the utility model, therefore, the protection scope of the utility model is defined by the claim range.

Claims

1. A piston cylinder device with protective function, characterized in that, include: The frame includes a top plate and a bottom plate arranged parallel to each other, and the top plate and the bottom plate are fixedly connected. The pressure application mechanism includes an upper hydraulic cylinder and a lower hydraulic cylinder, wherein the upper hydraulic cylinder is disposed on the bottom surface of the top plate and the lower hydraulic cylinder is disposed on the top surface of the bottom plate; The protective mechanism includes a first protective cover disposed on the bottom surface of the top plate, a third protective cover disposed on the top surface of the bottom plate, and a second protective cover that is slidably disposed between the top plate and the bottom plate. The upper hydraulic cylinder is located inside the first protective cover, the lower hydraulic cylinder is located inside the third protective cover, the first protective cover and the second protective cover are offset from each other, and the bottom of the second protective cover presses against the top of the third protective cover.

2. The piston cylinder device with protective function as described in claim 1, characterized in that, The first protective cover, the second protective cover, and the third protective cover are all cylindrical and coaxially arranged.

3. The piston cylinder device with protective function as described in claim 1, characterized in that, The upper hydraulic cylinder and the lower hydraulic cylinder are coaxially arranged.

4. The piston cylinder device with protective function as described in claim 1, characterized in that, The upper hydraulic cylinder is coaxially arranged with the first protective cover, and the lower hydraulic cylinder is coaxially arranged with the third protective cover.

5. A piston cylinder device with protective function as described in claim 1, characterized in that, The bottom of the second protective cover is recessed to form an annular positioning groove, and the top of the third protective cover protrudes to form a positioning part that cooperates with the positioning groove.

6. A piston cylinder device with protective function as described in claim 5, characterized in that, A sealing ring is provided between the positioning groove and the positioning part.

7. A piston cylinder device with protective function as described in claim 1, characterized in that, The second protective cover has a sealing ring at its top, which is located between the second protective cover and the first protective cover.

8. A piston cylinder device with protective function as described in claim 1, characterized in that, The top of the second protective cover is provided with a first magnetic ring, and the bottom surface of the top plate is provided with a second magnetic ring that cooperates with the first magnetic ring.

9. A piston cylinder device with protective function as described in claim 1, characterized in that, The second protective cover has a third magnetic ring at its bottom and a fourth magnetic ring at its top that cooperates with the third magnetic ring.

10. A piston cylinder device with protective function as described in claim 9, characterized in that, The bottom of the first protective cover is provided with a fifth magnetic ring that cooperates with the third magnetic ring.

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