Pressing handle internal expansion sealing tool
By setting limits and rebound mechanisms in the compression handle internal expansion sealing tool, the problem of spring rebound when the sealing head is inserted is solved, ensuring that the sealing head can be inserted and sealed effectively to prevent gas leakage.
Patent Information
- Application Number
- CN202421292872.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing pressure handle internal expansion sealing tool has the problem that the sealing head cannot be inserted when the sealing head is not inserted into the pipe.
By setting a limiting mechanism and a rebound mechanism in the sealing tool, the tie rod is fixed by using the limiting mechanism, so that the tie rod can be moved when rotating the handle, and the sealing head can be inserted and expanded to prevent gas from being discharged.
It realizes that the sealing head can enter the pipe smoothly when inserted, ensuring sealing effect and preventing gas leakage.
Smart Images
Figure CN222363420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of internal expansion sealing tools, in particular to an internal expansion sealing tool with a pressing handle. Background Art
[0002] When testing the air tightness of a straight pipe, one end of the straight pipe needs to be sealed. However, the existing seals generally use rubber plugs, hard plugs or strong tops, which can easily cause the rubber plug to deform, affecting the sealing effect and thus affecting the air tightness test.
[0003] Among them, a pressure handle internal expansion sealing tool with publication number CN218725124U includes an outer sleeve, a piston is slidably connected inside the outer sleeve, an inflation head is provided on the front side wall of the piston, a pull rod is provided on the left side wall of the piston, one end of the pull rod passes through the left side wall inside the outer sleeve and is connected with a sealing head provided on the outside, a third sealing ring is sleeved on the outer wall of the sealing head, a claw is sleeved on the outer wall of the pull rod, the right end of the claw is connected to the left side wall of the outer sleeve, a first sealing ring and a second sealing ring are sleeved on the outer wall of the claw, a spring is sleeved on the outer wall of the pull rod, one end of the spring is connected to the left side wall inside the outer sleeve, and the other end of the spring is connected to the left side wall of the piston, and a handle is installed on the right end inside the outer sleeve through a pin shaft.
[0004] The above solution has the following shortcomings:
[0005] In the above technical solution, since the pull rod is sliding, the spring will rebound when the sealing head is not inserted into the pipe, that is, the third sealing ring will expand when the sealing head is not inserted into the pipe, thereby making it impossible to insert the sealing head. Utility Model Content
[0006] In view of the problems existing in the existing pressure handle inner expansion sealing tool, the utility model is proposed.
[0007] Therefore, the purpose of the utility model is to provide a sealing tool with an internal expansion of the pressing handle, which solves the problem that the spring will rebound when the sealing head is not inserted into the inside of the pipe, that is, the third sealing ring will expand when the sealing head is not inserted into the inside of the pipe, thereby causing the sealing head to be unable to be inserted.
[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0009] A pressure handle internal expansion sealing tool, including an outer sleeve, a mounting groove is opened on one side of the outer sleeve, a handle is rotatably connected to the interior of the mounting groove through an axle pin, a pull rod is slidably arranged inside the outer sleeve, both ends of the pull rod pass through the side wall of the outer sleeve and are fixedly connected to a sealing head, one end of the pull rod is fixedly sleeved with a claw, the outer surfaces of the claw and the sealing head are fixedly sleeved with a sealing ring, the rod wall of the pull rod is provided with a rebound mechanism, the interior of the mounting groove is provided with a limiting mechanism, and the pull rod is fixed by the limiting mechanism.
[0010] Preferably, the rebound mechanism comprises a spring and a baffle, the baffle is fixedly sleeved on the rod wall of the pull rod, the spring is slidably sleeved on the rod wall of the pull rod, and one end of the spring is fixedly connected to one side of the baffle.
[0011] Preferably, the limiting mechanism comprises a push plate and a stop block, the push plate is fixedly connected to one end of the pull rod, the stop block is fixedly connected to one end of the handle, and the push plate is in contact with the stop block.
[0012] Preferably, the stopper is hemispherical in shape.
[0013] Preferably, a through hole is opened at the right end of the outer sleeve, and the pull rod seal is slidably arranged inside the through hole.
[0014] Preferably, the cross-section of the handle is circular, and the diameter of the stopper is the same as the diameter of the handle.
[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0016] 1. In the utility model, the limit mechanism provided inside the groove can fix the pull rod, thereby preventing the pull rod from moving before entering the interior of the product. When the handle is turned, the pull rod can move, thereby allowing the sealing head to be inserted into the interior of the claw, so that the sealing ring can expand outward and squeeze the side wall of the product.
[0017] 2. In the utility model, the push plate can be pressed against by the stopper, so that the pull rod is fixed. When the handle is rotated, the push plate can move and cling to one side of the stopper, and then move to one side of the handle, so that the pull rod can move. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 For the utility model Figure 1 sectional view from top;
[0021] Figure 3 For the utility model Figure 2 An enlarged schematic diagram of part A.
[0022] Description of reference numerals:
[0023] 1. Jacket; 2. Handle; 3. Pull rod; 4. Sealing head; 5. Claw; 6. Sealing ring; 7. Spring; 8. Baffle; 9. Push plate; 10. Stop block. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0025] The utility model embodiment discloses a sealing tool with an inner expansion of a pressing handle.
[0026] The utility model provides Figure 1-3 The illustrated embodiment of a pressure handle internal expansion sealing tool comprises an outer sleeve 1, a mounting groove is provided on one side of the outer sleeve 1, a handle 2 is rotatably connected to the interior of the mounting groove via an axle pin, a pull rod 3 is slidably provided inside the outer sleeve 1, both ends of the pull rod 3 penetrate the side wall of the outer sleeve 1 and are fixedly connected to a sealing head 4, a claw 5 is fixedly sleeved on one end of the pull rod 3, a sealing ring 6 is fixedly sleeved on the outer surfaces of the claw 5 and the sealing head 4, a rebound mechanism is provided on the rod wall of the pull rod 3, a limiting mechanism is provided inside the mounting groove, and the pull rod 3 is fixed by the limiting mechanism.
[0027] The pull rod 3 can be fixed by the limiting mechanism, and when the handle 2 is turned, the pull rod 3 can move, and then the sealing head 4 can be inserted into the inside of the claw 5, so that the sealing ring 6 can expand outward and squeeze the side wall of the product.
[0028] In order to make the pull rod 3 rebound, Figure 2 As shown, the rebound mechanism includes a spring 7 and a baffle 8. The baffle 8 is fixedly sleeved on the rod wall of the pull rod 3. The spring 7 is slidably sleeved on the rod wall of the pull rod 3. One end of the spring 7 is fixedly connected to one side of the baffle 8.
[0029] The rebound force of the spring 7 is utilized to squeeze the baffle 8 and move it, thereby driving the pull rod 3 to move.
[0030] In order to fix the pull rod 3, Figure 1-2As shown, the limiting mechanism includes a push plate 9 and a stopper 10. The push plate 9 is fixedly connected to one end of the pull rod 3, and the stopper 10 is fixedly connected to one end of the handle 2. The push plate 9 fits with the stopper 10. The stopper 10 is hemispherical in shape, the cross-section of the handle 2 is circular, and the diameter of the stopper 10 is the same as the diameter of the handle 2.
[0031] The stopper 10 can be used to abut against the push plate 9, so that the pull rod 3 is fixed. When the handle 2 rotates, the push plate 9 can move and cling to one side of the stopper 10, and then move to one side of the handle 2, so that the pull rod 3 can move.
[0032] Finally, in order to prevent the gas from being discharged from the right end of the jacket 1, as Figure 2 As shown, a through hole is opened at the right end of the outer sleeve 1, and the pull rod 3 is sealingly slidably arranged inside the through hole.
[0033] Because the pull rod 3 is arranged inside the through hole so that the seal is slidable, the gas can be prevented from being discharged from the right end of the outer sleeve 1 when the gas is filled.
[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A sealing tool with a pressure handle and an inner expansion seal, comprising a jacket (1), characterized in that: A mounting groove is provided on one side of the outer sleeve (1), and a handle (2) is rotatably connected to the interior of the mounting groove via an axle pin. A pull rod (3) is slidably provided inside the outer sleeve (1), and both ends of the pull rod (3) penetrate the side wall of the outer sleeve (1) and are fixedly connected to a sealing head (4). A claw (5) is fixedly sleeved on one end of the pull rod (3), and a sealing ring (6) is fixedly sleeved on the outer surfaces of the claw (5) and the sealing head (4). A rebound mechanism is provided on the rod wall of the pull rod (3), and a limiting mechanism is provided inside the mounting groove. The pull rod (3) is fixed by the limiting mechanism.
2. The pressure handle inner expansion sealing tool according to claim 1, characterized in that: The rebound mechanism comprises a spring (7) and a baffle (8), wherein the baffle (8) is fixedly sleeved on the rod wall of the pull rod (3), the spring (7) is slidably sleeved on the rod wall of the pull rod (3), and one end of the spring (7) is fixedly connected to one side of the baffle (8).
3. The pressure handle inner expansion sealing tool according to claim 1, characterized in that: The limiting mechanism comprises a push plate (9) and a stop block (10); the push plate (9) is fixedly connected to one end of the pull rod (3); the stop block (10) is fixedly connected to one end of the handle (2); and the push plate (9) fits the stop block (10).
4. The pressure handle inner expansion sealing tool according to claim 3, characterized in that: The stopper (10) is in a hemispherical shape.
5. The pressure handle inner expansion sealing tool according to claim 3, characterized in that: A through hole is provided at the right end of the outer sleeve (1), and the pull rod (3) is sealingly and slidably arranged inside the through hole.
6. The pressure handle inner expansion sealing tool according to claim 3, characterized in that: The cross section of the handle (2) is circular, and the diameter of the stopper (10) is the same as the diameter of the handle (2).