Anti-loose cylinder cover

Abstract

The utility model relates to the technical field of oil cylinder cover, especially a loosening -proof oil cylinder cover, including cylinder body and cylinder cover, the top outside fixed stable connecting sleeve of cylinder body, the cylinder cover is connected in the outside of stable connecting sleeve, the top between cylinder cover and the top of stable connecting sleeve is connected with first connecting mechanism, the side surface between cylinder cover and the side surface of stable connecting sleeve is connected with second connecting mechanism, the bottom of second connecting mechanism is installed with anti -loosening abutment mechanism. Advantageous effect lies in: the utility model through the first bolt between cylinder cover and stable connecting sleeve top fastening connection, and through spring elastic abutment first bolt, reduce the loosening of first bolt, and, the top of cylinder cover is fastened and abuts in second bolt, improves the fastening stability of first bolt connection, avoids the loosening of first bolt, keeps the fastening connection between cylinder cover and cylinder body.

Description

Technical Field

[0001] This utility model relates to the field of cylinder head technology, and in particular to a cylinder head that prevents loosening. Background Technology

[0002] A hydraulic cylinder is a linear motion actuator whose output force is proportional to the effective area of ​​the piston and the pressure difference across it. Its function is to convert hydraulic energy into mechanical energy. The input to a hydraulic cylinder is the flow rate and pressure of the fluid, and the output is linear motion speed and force. The piston of the hydraulic cylinder can complete linear reciprocating motion, and the output linear displacement is finite. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a cushioning device, and a venting device. The cushioning device and venting device are determined according to the specific application. The other devices are essential. The connection between the cylinder head and the hydraulic cylinder is usually a threaded connection.

[0003] For example, the prior art Chinese patent publication number "CN220622332U" provides an anti-loosening cylinder cover, including a cylinder body, a limiting groove is opened on one side of the top of the cylinder body, a sealing ring is bonded to the inner side of the limiting groove, a cylinder cover body is threaded to the outer side of the top of the cylinder body and fits against the outer side of the sealing ring, a first indicator block is fixed on one side of the bottom of the cylinder cover body, and several second indicator blocks are fixed on the outer side of the cylinder body, with a limiting component on one side of the second indicator blocks.

[0004] The device connects the cylinder body to the cylinder head body via a threaded connection. A sealing ring provides elastic force perpendicular to the thread direction to prevent the cylinder body and cylinder head body from loosening after the threaded connection. At the same time, multiple sliding pins push the locking block to insert into the locking groove. After the locking block is inserted into the locking groove, it provides a vertical force after the cylinder body and cylinder head body are threadedly connected. This double protection prevents the cylinder head body from loosening after installation and improves the stability of the cylinder head body and cylinder body after installation.

[0005] The existing cylinder head is bolted to the top of the cylinder body. However, the bolt connection structure is relatively simple. The vibration generated by the use of the cylinder body can cause the simple bolt connection to loosen, resulting in loosening of the cylinder head installation connection. There is no secure connection structure between the cylinder head and the cylinder body.

[0006] Therefore, a cylinder cover designed to prevent loosening is proposed. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies where vibrations generated during the use of the cylinder body can cause simple bolt connections to loosen, leading to loosening of the cylinder head installation connection and the lack of a secure connection structure between the cylinder head and the cylinder body. Therefore, this invention proposes an anti-loosening cylinder head.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] Design an anti-loosening cylinder head, including a cylinder body and a cylinder head. A stabilizing connecting sleeve is fixed to the outer side of the top of the cylinder body. The cylinder head is threaded to the outer side of the stabilizing connecting sleeve. A first connecting mechanism is connected between the top of the cylinder head and the top of the stabilizing connecting sleeve. A second connecting mechanism is connected between the side of the cylinder head and the side of the stabilizing connecting sleeve. An anti-loosening abutment mechanism is installed at the bottom of the second connecting mechanism.

[0010] The first connecting mechanism includes:

[0011] A first bolt is connected between the cylinder head and the stabilizing connecting sleeve. The top end of the stabilizing connecting sleeve has a first connecting hole evenly opened, and the top edge of the cylinder head has a second connecting hole evenly opened. The first bolt slides through the second connecting hole and is threaded and inserted into the first connecting hole. A spring is connected to the inner end of the first bolt, and the spring is compressed and installed inside the first connecting hole.

[0012] A connecting plate is slidably fitted onto the surface of the first bolt. The connecting plate abuts against the top of the cylinder head. A third connecting hole is evenly opened on its surface. The internal thread of the third connecting hole rotates through a second bolt. The bottom end of the second bolt abuts against the top of the cylinder head.

[0013] Furthermore, the first connecting hole and the second connecting hole are aligned vertically, the connecting plate is a circular plate structure and is horizontally arranged, the third connecting hole is a threaded hole structure, and a first nut is connected to the surface of the first bolt and at the top of the connecting plate, and the first bolt is vertically arranged.

[0014] Furthermore, the inner surface of the cylinder head has an internal thread structure, and a through hole is opened in the middle of its top end. The stabilizing connecting sleeve has a circular sleeve structure, and its outer surface has an external thread structure.

[0015] Furthermore, the second connecting mechanism includes;

[0016] A third bolt is connected between the side of the cylinder head and the side of the stabilizing connecting sleeve. The outer side of the stabilizing connecting sleeve has a snap-fit ​​groove in the middle. The snap-fit ​​groove is a circular structure and is horizontally arranged. The side of the cylinder head has a fourth connecting hole in the middle. The fourth connecting hole is a threaded hole structure and is horizontally aligned with the snap-fit ​​groove. The third bolt rotates through the inside of the fourth connecting hole.

[0017] Furthermore, the inner end of the third bolt abuts against and is inserted into the inside of the snap-fit ​​groove. The third bolt is horizontally positioned, and its outer end head is a cylindrical structure with a pre-reserved disassembly groove on the side of the head.

[0018] Furthermore, a support plate is fixed on the surface of the cylinder and at the bottom of the stable connecting sleeve. The support plate has a circular structure and is horizontally arranged, with fifth connecting holes evenly opened on its surface.

[0019] Furthermore, the anti-loosening abutment mechanism includes:

[0020] A sliding abutment ring is fitted onto the outside of the stable connecting sleeve. A connecting rod slides through the inside of the fifth connecting hole. The connecting rod is a threaded rod structure and is vertically arranged. A second nut is connected to its surface at the upper and lower ends of the fifth connecting hole. The abutment ring is fixed to the top of the connecting rod.

[0021] Furthermore, the connecting rod has a circular ring structure and is horizontally positioned. Its top end has uniformly opened anti-slip abutment grooves. The anti-slip abutment grooves are arc-shaped grooves with a frosted inner surface and abut against the bottom end of the third bolt head.

[0022] The present invention provides an anti-loosening cylinder cover, the advantages of which are as follows:

[0023] 1. This utility model fixes a stabilizing connecting sleeve to the top of the outer side of the cylinder body, while the cylinder head is threaded to the outer side of the stabilizing connecting sleeve. At the same time, the top of the cylinder head and the stabilizing connecting sleeve are fastened together by a first bolt, and the first bolt is abutted by a spring to reduce the loosening of the first bolt. Moreover, a connecting plate is sleeved on the surface of the first bolt by a first nut, so that several second bolts are fastened to the top of the cylinder head, which improves the fastening stability of the first bolt connection, prevents the first bolt from loosening, and maintains a tight connection between the cylinder head and the cylinder body.

[0024] 2. In this utility model, a third bolt is installed between the cylinder head and the side of the stabilizing connecting sleeve. The inner end of the third bolt is tightly abutted in the snap-fit ​​groove, which improves the stability of the cylinder head connection. In addition, an abutment ring is installed at the top of the support plate through a connecting rod. The abutment ring abuts the bottom end of the head of the third bolt through an anti-slip abutment groove, which prevents the third bolt from loosening, thereby maintaining a tight connection between the cylinder head and the cylinder body. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This utility model Figure 1 A schematic diagram of the stable connecting sleeve and support plate;

[0027] Figure 3 This utility model Figure 1 A schematic diagram of the cylinder head section;

[0028] Figure 4 This utility model Figure 1 A schematic diagram of the first bolt and connecting plate;

[0029] Figure 5 This utility model Figure 1 A schematic diagram of the abutment ring portion.

[0030] In the diagram: 1. Cylinder block; 2. Support plate; 3. Connecting rod; 4. Second nut; 5. Abutment ring; 6. Third bolt; 7. Cylinder head; 8. Connecting plate; 9. Second bolt; 10. First bolt; 11. Through hole; 12. First nut; 13. Fifth connecting hole; 14. Stabilizing connecting sleeve; 15. Snap-fit ​​groove; 16. First connecting hole; 17. Fourth connecting hole; 18. Second connecting hole; 19. Spring; 20. Third connecting hole; 21. Anti-slip abutment groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example 1

[0033] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The figure shows an anti-loosening cylinder head, including a cylinder body 1 and a cylinder head 7. A stabilizing connecting sleeve 14 is fixed to the outer side of the top of the cylinder body 1. The cylinder head 7 is threaded to the outer side of the stabilizing connecting sleeve 14. A first connecting mechanism is connected between the top of the cylinder head 7 and the top of the stabilizing connecting sleeve 14. A second connecting mechanism is connected between the side of the cylinder head 7 and the side of the stabilizing connecting sleeve 14. An anti-loosening abutment mechanism is installed at the bottom of the second connecting mechanism.

[0034] The first connecting mechanism includes: a first bolt 10 connected between the cylinder head 7 and the stabilizing connecting sleeve 14; a first connecting hole 16 is evenly opened at the top end of the stabilizing connecting sleeve 14; a second connecting hole 18 is evenly opened at the top edge of the cylinder head 7; the first bolt 10 slides through the second connecting hole 18 and is threadedly inserted into the first connecting hole 16; a spring 19 is connected to the inner end of the first bolt 10; the spring 19 is compressed and installed inside the first connecting hole 16.

[0035] The connecting plate 8 is slidably sleeved on the surface of the first bolt 10. The connecting plate 8 presses against the top of the cylinder head 7. The surface of the connecting plate 8 is evenly provided with a third connecting hole 20. The internal thread of the third connecting hole 20 rotates through the second bolt 9. The bottom end of the second bolt 9 abuts against the top of the cylinder head 7.

[0036] The cylinder head 7 is threaded onto the outside of the stabilizing sleeve 14. At the same time, the top end of the cylinder head 7 and the stabilizing sleeve 14 is fastened by the first bolt 10, and the bottom end of the first bolt 10 is abutted by the spring 19 to reduce the loosening of the first bolt 10.

[0037] The first connecting hole 16 and the second connecting hole 18 are aligned vertically. The connecting plate 8 is a circular plate structure and is set horizontally. The third connecting hole 20 is a threaded hole structure. The surface of the first bolt 10 and the position at the top of the connecting plate 8 are connected to the first nut 12. The first bolt 10 is set vertically.

[0038] The inner surface of the cylinder head 7 is an internal threaded surface structure, and a through hole 11 is opened in the middle of its top. The stabilizing connecting sleeve 14 is a circular sleeve structure, and its outer surface is an external threaded surface structure.

[0039] The connecting plate 8 is sleeved on the surface of the first bolt 10 by the first nut 12, so that several second bolts 9 are fastened to the top of the cylinder head 7, which improves the fastening stability of the first bolt 10 connection, prevents the first bolt 10 from loosening, and maintains the tight connection between the cylinder head 7 and the cylinder body 1.

[0040] Example 2

[0041] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The figure shows an anti-loosening cylinder head, including a cylinder body 1 and a cylinder head 7. A stabilizing connecting sleeve 14 is fixed to the outer side of the top of the cylinder body 1. The cylinder head 7 is threaded to the outer side of the stabilizing connecting sleeve 14. A first connecting mechanism is connected between the top of the cylinder head 7 and the top of the stabilizing connecting sleeve 14. A second connecting mechanism is connected between the side of the cylinder head 7 and the side of the stabilizing connecting sleeve 14. An anti-loosening abutment mechanism is installed at the bottom of the second connecting mechanism.

[0042] The second connecting mechanism includes a third bolt 6 connected between the side of the cylinder head 7 and the side of the stabilizing connecting sleeve 14. The outer side of the stabilizing connecting sleeve 14 has a snap-fit ​​groove 15 in the middle. The snap-fit ​​groove 15 is a circular structure and is horizontally set. The side of the cylinder head 7 has a fourth connecting hole 17 in the middle. The fourth connecting hole 17 is a threaded hole structure and is horizontally aligned with the snap-fit ​​groove 15. The third bolt 6 rotates through the inside of the fourth connecting hole 17.

[0043] The inner end of the third bolt 6 abuts against the inside of the insertion slot 15. The third bolt 6 is set horizontally, and its outer end head is a cylindrical structure with a pre-reserved disassembly and assembly slot on the side of the head.

[0044] A support plate 2 is fixed on the surface of the cylinder 1 at the bottom of the stabilizing connecting sleeve 14. The support plate 2 is a circular structure and is horizontally set. The surface of the support plate has a fifth connecting hole 13 evenly opened.

[0045] A third bolt 6 is installed between the cylinder head 7 and the side of the stabilizing sleeve 14, and the inner end of the third bolt 6 is fastened to the snap-fit ​​groove 15 to improve the stability of the cylinder head 7 connection.

[0046] The anti-loosening abutment mechanism includes: an abutment ring 5 that is slidably sleeved on the outside of the stabilizing connecting sleeve 14; a connecting rod 3 that slides through the inside of the fifth connecting hole 13; the connecting rod 3 is a threaded rod structure and is vertically set; a second nut 4 is connected to its surface at the upper and lower ends of the fifth connecting hole 13; and the abutment ring 5 is fixed to the top of the connecting rod 3.

[0047] The connecting rod 3 has a circular ring structure and is set horizontally. Its top end has uniformly opened anti-slip abutment grooves 21. The anti-slip abutment grooves 21 have an arc-shaped groove structure and a frosted inner surface structure, and abut against the bottom end of the head of the third bolt 6.

[0048] An abutment ring 5 is installed at the top of the support plate 2 via a connecting rod 3. The abutment ring 5 abuts against the bottom end of the head of the third bolt 6 via an anti-slip abutment groove 21 to prevent the third bolt 6 from loosening, thereby maintaining a tight connection between the cylinder head 7 and the cylinder body 1.

[0049] Working method: A stabilizing connecting sleeve 14 is fixed to the top outer side of the cylinder body 1, and the cylinder head 7 is threaded to the outside of the stabilizing connecting sleeve 14. At the same time, the top of the cylinder head 7 and the stabilizing connecting sleeve 14 are fastened by the first bolt 10, and the bottom of the first bolt 10 is abutted by the spring 19 to reduce the loosening of the first bolt 10. Moreover, the connecting plate 8 is sleeved on the surface of the first bolt 10 by the first nut 12, so that several second bolts 9 are fastened to the top of the cylinder head 7, improving the fastening stability of the first bolt 10 connection, preventing the first bolt 10 from loosening, and maintaining the fastening connection between the cylinder head 7 and the cylinder body 1.

[0050] A third bolt 6 is installed between the cylinder head 7 and the side of the stabilizing connecting sleeve 14, and the inner end of the third bolt 6 is fastened to the snap-fit ​​groove 15 to improve the stability of the cylinder head 7 connection. In addition, an abutment ring 5 is installed at the top of the support plate 2 through the connecting rod 3. The abutment ring 5 abuts against the bottom end of the head of the third bolt 6 through the anti-slip abutment groove 21 to prevent the third bolt 6 from loosening, thereby maintaining a tight connection between the cylinder head 7 and the cylinder body 1.

[0051] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A cylinder head with anti-loosening feature, comprising a cylinder body (1) and a cylinder head (7), characterized in that: A stabilizing connecting sleeve (14) is fixed to the outer side of the top of the cylinder body (1). The cylinder head (7) is threaded to the outer side of the stabilizing connecting sleeve (14). A first connecting mechanism is connected between the top of the cylinder head (7) and the top of the stabilizing connecting sleeve (14). A second connecting mechanism is connected between the side of the cylinder head (7) and the side of the stabilizing connecting sleeve (14). An anti-loosening abutment mechanism is installed at the bottom of the second connecting mechanism. The first connecting mechanism includes: A first bolt (10) is connected between the cylinder head (7) and the stabilizing connecting sleeve (14). The top end of the stabilizing connecting sleeve (14) is evenly provided with a first connecting hole (16). The top edge of the cylinder head (7) is evenly provided with a second connecting hole (18). The first bolt (10) slides through the second connecting hole (18) and is threadedly inserted into the first connecting hole (16). The inner end of the first bolt (10) is connected with a spring (19). The spring (19) is compressed and installed inside the first connecting hole (16). A connecting plate (8) is slidably sleeved on the surface of the first bolt (10). The connecting plate (8) abuts against the top of the cylinder head (7). A third connecting hole (20) is evenly opened on its surface. The internal thread of the third connecting hole (20) rotates through the second bolt (9). The bottom end of the second bolt (9) abuts against the top of the cylinder head (7).

2. The anti-loosening cylinder cover according to claim 1, characterized in that: The first connecting hole (16) and the second connecting hole (18) are aligned vertically. The connecting plate (8) is a circular plate structure and is horizontally arranged. The third connecting hole (20) is a threaded hole structure. The surface of the first bolt (10) and the position located at the top of the connecting plate (8) are connected to the first nut (12). The first bolt (10) is vertically arranged.

3. The anti-loosening cylinder cover according to claim 1, characterized in that: The inner surface of the cylinder head (7) is an internal threaded surface structure, and a through hole (11) is opened in the middle of its top end. The stable connecting sleeve (14) is a circular sleeve structure, and its outer surface is an external threaded surface structure.

4. The anti-loosening cylinder cover according to claim 1, characterized in that: The second connecting mechanism includes; A third bolt (6) is connected between the side of the cylinder head (7) and the side of the stabilizing sleeve (14). The stabilizing sleeve (14) has a snap-fit ​​groove (15) in the middle of its outer side. The snap-fit ​​groove (15) is a circular structure and is horizontally arranged. The cylinder head (7) has a fourth connecting hole (17) in the middle of its side side. The fourth connecting hole (17) is a threaded hole structure and is horizontally aligned with the snap-fit ​​groove (15). The third bolt (6) is threaded and rotates through the interior of the fourth connecting hole (17).

5. The anti-loosening cylinder cover according to claim 4, characterized in that: The inner end of the third bolt (6) abuts against the inside of the snap-fit ​​groove (15). The third bolt (6) is horizontally set, and its outer end head is a cylindrical structure with a pre-reserved disassembly groove on the side of the head.

6. The anti-loosening cylinder cover according to claim 5, characterized in that: A support plate (2) is fixed on the surface of the cylinder (1) and at the bottom of the stable connecting sleeve (14). The support plate (2) is a circular ring structure and is horizontally arranged. A fifth connecting hole (13) is evenly opened on its surface.

7. The anti-loosening cylinder cover according to claim 6, characterized in that: The anti-loosening abutment mechanism includes: The abutment ring (5) is slidably sleeved on the outside of the stable connecting sleeve (14). The connecting rod (3) slides through the inside of the fifth connecting hole (13). The connecting rod (3) is a threaded rod structure and is vertically arranged. A second nut (4) is connected to its surface at the upper and lower ends of the fifth connecting hole (13). The abutment ring (5) is fixed to the top of the connecting rod (3).

8. The anti-loosening cylinder cover according to claim 7, characterized in that: The connecting rod (3) is a ring-shaped structure and is horizontally arranged. Its top end is evenly provided with anti-slip abutment grooves (21). The anti-slip abutment grooves (21) are arc-shaped grooves with a frosted inner surface and abut against the bottom end of the head of the third bolt (6).

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