Buckle type crane pipe connection protection device

Abstract

The utility model relates to a connection protection device, in particular to a buckle type crane pipe connection protection device which comprises an upper buckle and a lower buckle, and the upper buckle is arranged above the lower buckle. A middle screw is arranged on the upper buckle, and synchronous fastening mechanisms are arranged on the two sides of the middle screw. The synchronous fastening mechanism comprises side screws, the side screws are arranged on the two sides of the middle screw respectively, and when the middle screw is tightened in the direction towards the upper buckle, the synchronous fastening mechanism drives the lower buckle to be close to the upper buckle at the same time through the side screws, so that clamping of the upper buckle and the lower buckle is completed. Synchronous transmission among the three screws is achieved through the synchronous fastening mechanism, when the middle screw is slowly close to the upper buckle to be clamped, the synchronous fastening mechanism drives the side screws on the two sides to rotate, and therefore the side screws drive the lower buckle to be slowly close to the upper buckle, tightening efficiency is improved, and synchronism of the three screws is achieved.

Description

Technical Field

[0001] The utility model relates to a connection protection device, in particular to a snap-type crane pipe connection protection device. Background Technique

[0002] The liquid loading and unloading station in the storage and transportation center is mainly responsible for loading and selling the liquid products produced by the main device and receiving the liquid raw and auxiliary materials required by the main device. In the operation of loading and unloading vehicles, the firm connection between the tank truck and the crane pipe, the effective sealing of the loading and unloading medium, and the personal safety of the operators are particularly important.

[0003] Currently, in the operation of loading and unloading pressure tank trucks, the connection between the tank body and the quick coupling of the crane pipe is fixed by a snap. When the snap is loose or deformed, it is easy to fail, resulting in the detachment of the crane pipe, leakage of the loading and unloading medium, and accidents of personal injury, posing potential safety hazards. Therefore, a snap-type crane pipe connection protection device needs to be installed at the connection between the pressure tank truck body and the quick coupling of the crane pipe. The snap-type crane pipe connection protection device can ensure the firm connection of the crane pipe, prevent the leakage of the loading and unloading medium, and protect the personal safety of the operators.

[0004] At the same time, the existing snap-type connection is generally achieved by manually tightening screws and nuts to complete the connection between the screws and nuts. When there are multiple screws and nuts on a set of snaps, the tightening time is relatively long, which is not convenient for quick tightening. Content of the Utility Model

[0005] The purpose of the utility model is to provide a snap-type crane pipe connection protection device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A snap-type crane pipe connection protection device includes an upper snap and a lower snap, and the upper snap is arranged above the lower snap;

[0008] An intermediate screw is arranged on the upper snap, and synchronous tightening mechanisms are arranged on both sides of the intermediate screw;

[0009] The synchronous tightening mechanism includes side screws, which are respectively arranged on both sides of the intermediate screw. When the intermediate screw is tightened in the direction of the upper snap, the synchronous tightening mechanism drives the lower snap to approach the upper snap simultaneously through the side screws, thereby completing the clamping of the upper snap and the lower snap.

[0010] The snap-type crane pipe connection protection device as described above: a first thread groove is opened at the middle position of the upper snap, a thread line is arranged on the bottom surface of the intermediate screw, and the intermediate screw is in threaded connection with the upper snap.

[0011] The snap-on crane pipe connection protection device as described above: the synchronous fastening mechanism also includes a first sleeve, a first annular groove is opened above the middle screw, the first sleeve is sleeved on the first annular groove corresponding to the middle screw, and the middle screw and the first sleeve are rotatably connected.

[0012] The snap-on crane pipe connection protection device as described above: the synchronous fastening mechanism also includes a first articulated seat, a connecting rod and a second articulated seat, the first articulated seat, the connecting rod and the second articulated seat are symmetrically distributed on both sides of the first sleeve, the first articulated seat is fixedly connected to both sides of the first sleeve, the upper end of the connecting rod is rotatably connected to the first articulated seat, and the lower end of the connecting rod is rotatably connected to the second articulated seat.

[0013] The snap-on crane pipe connection protection device as described above: a spiral groove is provided on the upper surface of the side screw;

[0014] The synchronous fastening mechanism also includes a second sleeve and a ball, wherein the ball is rolled and embedded in the spiral groove of the side screw, the second sleeve is sleeved on the outer surface position of the side screw corresponding to the spiral groove, and the end of the second hinged seat away from the connecting rod is fixedly connected to the second sleeve.

[0015] As described above, the snap-on crane pipe connection protection device: the inner wall of the second sleeve is provided with a hemispherical groove of a size corresponding to the ball, and the size of the hemispherical groove is slightly larger than the ball, the ball and the second sleeve are rollingly connected, the second sleeve and the side screw are matched through the ball, and the second sleeve is used to drive the side screw to rotate.

[0016] As described above, the snap-on crane pipe connection protection device: a second annular groove corresponding to the limiting groove is opened in the middle position of the side screw, and the side screw and the upper snap are rotationally connected.

[0017] As described above, the snap-on crane pipe connection protection device: a second thread groove is provided on the lower snap-on at the position corresponding to the side screw, and a thread line corresponding to the second thread groove is provided on the bottom circumferential surface of the side screw, and the side screw and the lower snap-on are threadedly connected.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes synchronous transmission among the three screws through the synchronous fastening mechanism, and when the middle screw and the upper buckle are slowly approached and clamped, the side screws on both sides are driven to rotate through the synchronous fastening mechanism, so that the side screw drives the lower buckle to slowly approach the upper buckle, so that the structural positioning of the middle screw to another buckle and the tightening of the upper and lower buckles are synchronously performed, thereby improving the tightening efficiency and realizing the synchronization of the three screws;

[0019] The snap - type loading arm connection protection device is also a set of protection devices added outside the quick - coupling of the loading arm. When the snap is loose or deformed, it effectively replaces the snap to fix the loading arm to the tank car, which is the second - layer protection facility for the tight connection between the tank car and the loading arm. Before the loading and unloading operation, the snap - type loading arm connection protection device is fixed outside the quick - coupling. By limiting the contact surface of the quick - coupling, the quick - coupling is firmly fixed inside the snap - type anti - detachment protection device, eliminating the safety hazard of the loading arm falling off, ensuring the safety of the tank car loading and unloading, and protecting the personal safety of the operators. Brief Description of the Drawings

[0020] Figure 1 It is a three - dimensional schematic diagram of the overall structure of the snap - type loading arm connection protection device.

[0021] Figure 2 It is a schematic diagram of the structure of the snap - type loading arm connection protection device from another direction.

[0022] Figure 3 It is a schematic diagram of the structure of the first thread groove and the limit groove in the snap - type loading arm connection protection device.

[0023] Figure 4 It is a schematic diagram of the structure of the first annular groove in the snap - type loading arm connection protection device.

[0024] Figure 5 It is a schematic diagram of the structure of the spiral groove, the second annular groove and the ball in the snap - type loading arm connection protection device.

[0025] Figure 6 It is a schematic diagram of the structure of the hemispherical groove in the snap - type loading arm connection protection device.

[0026] Figure 7 It is a schematic diagram of the rotational connection relationship between the intermediate screw and the first sleeve in the snap - type loading arm connection protection device.

[0027] Figure 8 It is a schematic diagram of the structure of the second thread groove in the snap - type loading arm connection protection device.

[0028] Figure 9 It is a schematic diagram of the rotational connection relationship between the side screw and the upper snap in the snap - type loading arm connection protection device.

[0029] Figure 10 It is a schematic diagram of the positional relationship among the side screw, the second sleeve and the roller in the snap - type loading arm connection protection device.

[0030] In the figure: 1. Upper buckle; 101. First thread groove; 102. Limit groove; 2. Lower buckle; 201. Second thread groove; 3. Intermediate screw; 301. First annular groove; 4. First sleeve; 5. First hinge seat; 6. Connecting rod; 7. Second hinge seat; 8. Side screw; 801. Spiral groove; 802. Second annular groove; 9. Second sleeve; 901. Hemispherical groove; 10. Ball. Specific implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Please refer to Figures 1 - 10 , as an embodiment of the present invention, the snap - type loading arm connection protection device includes an upper buckle 1 and a lower buckle 2, and the upper buckle 1 is arranged above the lower buckle 2;

[0033] An intermediate screw 3 is arranged on the upper buckle 1, and synchronous fastening mechanisms are arranged on both sides of the intermediate screw 3;

[0034] The synchronous fastening mechanism includes side screws 8, and the side screws 8 are respectively arranged on both sides of the intermediate screw 3. When the intermediate screw 3 is tightened in the direction of the upper buckle 1, the synchronous fastening mechanism drives the lower buckle 2 to simultaneously approach the upper buckle 1 through the side screws 8, thereby completing the clamping of the upper buckle 1 and the lower buckle 2.

[0035] In this embodiment, when it is necessary to tighten the upper buckle 1 and the lower buckle 2, the intermediate screw 3 is rotated. The intermediate screw 3 will rotate and penetrate into the interior of the upper buckle 1 at the same time. During the descending process of the intermediate screw 3, it will drive the side screw 8 to rotate through the synchronous clamping mechanism. The side screw 8 will drive the lower buckle 2 to slowly approach the upper buckle 1, thereby completing the tightening of the upper buckle 1 and the lower buckle 2. At the same time, the bottom of the intermediate screw 3 will quickly position another snap - type structure outside the loading arm, thereby preventing the loading arm from falling off the snap - type structure.

[0036] As a further solution of the present invention, a first thread groove 101 is opened at the middle position of the upper buckle 1, a thread line is arranged on the bottom surface of the intermediate screw 3, the first sleeve 4 is sleeved at the corresponding first annular groove 301 of the intermediate screw 3, and the intermediate screw 3 is in threaded connection with the upper buckle 1.

[0037] In this embodiment, since the first thread groove 101 is opened inside the upper buckle 1, the intermediate screw 3 can rotate and descend inside the upper buckle 1 to position the initial snap - type structure.

[0038] As a further solution of the utility model, the synchronous fastening mechanism further comprises a first sleeve 4 , a first annular groove 301 is provided above the middle screw 3 , and the middle screw 3 is rotatably connected to the first sleeve 4 .

[0039] In this embodiment, since the middle screw 3 is provided with a first annular groove 301 and the first sleeve 4 is sleeved on the middle screw 3, the middle screw 3 and the first sleeve 4 can only rotate relative to each other. When the middle screw 3 rotates, the first sleeve 4 does not rotate. When the middle screw 3 approaches the upper buckle 1, the first sleeve 4 will also descend along with the middle screw 3.

[0040] As a further solution of the utility model, the synchronous fastening mechanism also includes a first articulated seat 5, a connecting rod 6 and a second articulated seat 7. The first articulated seat 5, the connecting rod 6 and the second articulated seat 7 are symmetrically distributed on both sides of the first sleeve 4. The first articulated seat 5 is fixedly connected to both sides of the first sleeve 4, the upper end of the connecting rod 6 is rotatably connected to the first articulated seat 5, and the lower end of the connecting rod 6 is rotatably connected to the second articulated seat 7.

[0041] In this embodiment, since the first articulated seat 5 and the first sleeve 4 are fixedly connected, when the first sleeve 4 descends, it will drive the first articulated seat 5 to descend. Similarly, the first articulated seat 5 and the second articulated seat 7 are connected by the connecting rod 6, and the first articulated seat 5 will drive the second articulated seat 7 to descend through the connecting rod 6.

[0042] As a further solution of the present invention, a spiral groove 801 is provided on the upper surface of the side screw 8;

[0043] The synchronous fastening mechanism also includes a second sleeve 9 and a ball 10. The ball 10 is rolled and embedded in the spiral groove 801 of the side screw 8. The second sleeve 9 is sleeved on the outer surface position of the side screw 8 corresponding to the spiral groove 801. The end of the second hinged seat 7 facing away from the connecting rod 6 is fixedly connected to the second sleeve 9.

[0044] In this embodiment, since the second hinged seat 7 and the second sleeve 9 are fixedly connected, when the second hinged seat 7 descends, the second sleeve 9 will be driven to descend.

[0045] As a further solution of the utility model, the inner wall of the second sleeve 9 is provided with a hemispherical groove 901 of a size corresponding to the ball 10, and the size of the hemispherical groove 901 is slightly larger than the ball 10. The ball 10 and the second sleeve 9 are rollingly connected. The second sleeve 9 cooperates with the side screw 8 through the ball 10, and the second sleeve 9 is used to drive the side screw 8 to rotate.

[0046] In this embodiment, combined with the previous embodiment, it can be seen that the second sleeve 9 will descend. While the second sleeve 9 is descending, it will drive the ball 10 to move through its own hemispherical groove 901. Since a spiral groove 801 is provided at the corresponding position on the side screw 8, the second sleeve 9 can drive the side screw 8 to rotate through the ball 10.

[0047] As a further solution of the present utility model, a second annular groove 802 corresponding to the limiting groove 102 is provided at the middle position of the side screw 8, and the side screw 8 is rotatably connected to the upper buckle 1.

[0048] In this embodiment, combined with the previous embodiment, when the second sleeve 9 descends, it will give a downward force to the ball 10. In theory, the ball 10 can push the side screw 8 to descend while rotating;

[0049] However, a second annular groove 802 corresponding to the limiting groove 102 on the upper buckle 1 is provided at the middle position of the side screw 8, and as can be seen from Figure 9 it, when the side screw 8 descends, it is blocked by the upper buckle 1, resulting in that the side screw 8 can only rotate, and the side screw 8 and the upper buckle 1 are in a rotatable connection relationship.

[0050] As a further solution of the present utility model, a second thread groove 201 corresponding to the side screw 8 is provided at the corresponding position on the lower buckle 2, and thread lines corresponding to the second thread groove 201 are provided on the circumferential surface of the bottom of the side screw 8, and the side screw 8 and the lower buckle 2 are in a threaded connection.

[0051] In this embodiment, since thread lines corresponding to the second thread groove 201 are also provided on the side screw 8, when the side screw 8 rotates, the lower buckle 2 will slowly rise, so that the lower buckle 2 will slowly approach the upper buckle 1, thereby completing the clamping of the upper buckle 1 and the lower buckle 2.

[0052] At the same time, when the upper buckle 1 and the lower buckle 2 are clamped, the bottom position of the middle screw 3 will also stably position another snap-fastening structure outside the swivel arm.

[0053] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. A snap - type loading arm connection protection device, characterized in that, The buckle-type crane pipe connection protection device comprises an upper buckle (1) and a lower buckle (2), wherein the upper buckle (1) is arranged above the lower buckle (2); The upper buckle (1) is provided with an intermediate screw (3), and synchronous fastening mechanisms are provided on both sides of the intermediate screw (3); The synchronous fastening mechanism comprises side screws (8), and the side screws (8) are respectively arranged on both sides of the middle screw (3). When the middle screw (3) is tightened in the direction of the upper buckle (1), the synchronous fastening mechanism drives the lower buckle (2) to approach the upper buckle (1) at the same time through the side screws (8), thereby completing the clamping of the upper buckle (1) and the lower buckle (2).

2. The snap - type loading arm connection protection device according to claim 1, characterized in that, A first thread groove (101) is provided at the middle position of the upper buckle (1), a thread line is provided on the bottom surface of the middle screw (3), and the middle screw (3) and the upper buckle (1) are threadedly connected.

3. The snap - type loading arm connection protection device according to claim 1, characterized in that, The synchronous fastening mechanism further comprises a first sleeve (4), a first annular groove (301) is provided above the intermediate screw (3), the first sleeve (4) is sleeved in the first annular groove (301) corresponding to the intermediate screw (3), and the intermediate screw (3) and the first sleeve (4) are rotatably connected.

4. A snap - type loading arm connection protection device according to claim 1, characterized in that, The synchronous fastening mechanism also includes a first articulated seat (5), a connecting rod (6) and a second articulated seat (7); the first articulated seat (5), the connecting rod (6) and the second articulated seat (7) are symmetrically distributed on both sides of the first sleeve (4); the first articulated seat (5) is fixedly connected to both sides of the first sleeve (4); the upper end of the connecting rod (6) is rotatably connected to the first articulated seat (5); and the lower end of the connecting rod (6) is rotatably connected to the second articulated seat (7).

5. A snap - type loading arm connection protection device according to claim 4, characterized in that, The upper surface of the side screw (8) is provided with a spiral groove (801); The synchronous fastening mechanism also includes a second sleeve (9) and a ball (10), wherein the ball (10) is rollingly embedded in the spiral groove (801) of the side screw (8), the second sleeve (9) is sleeved on the outer surface position of the side screw (8) corresponding to the spiral groove (801), and the end of the second hinge seat (7) facing away from the connecting rod (6) is fixedly connected to the second sleeve (9).

6. The snap - type loading arm connection protection device according to claim 5, characterized in that, The inner wall of the second sleeve (9) is provided with a hemispherical groove (901) of a size corresponding to the ball (10), and the size of the hemispherical groove (901) is slightly larger than the ball (10). The ball (10) and the second sleeve (9) are in rolling connection. The second sleeve (9) and the side screw (8) are matched through the ball (10), and the second sleeve (9) is used to drive the side screw (8) to rotate.

7. A snap - type loading arm connection protection device according to claim 1, characterized in that, A second annular groove (802) corresponding to the limiting groove (102) is provided in the middle of the side screw (8), and the side screw (8) is rotatably connected to the upper buckle (1).

8. The snap - type loading arm connection protection device according to claim 1, characterized in that, A second thread groove (201) is provided on the lower buckle (2) at a position corresponding to the side screw (8), and a thread line corresponding to the second thread groove (201) is provided on the bottom peripheral surface of the side screw (8), and the side screw (8) and the lower buckle (2) are threadedly connected.

Images