A special tool for installing a pagoda-shaped spring

Abstract

The utility model relates to the technical field of pagoda-shaped spring installation, and in particular to a special tool for installing a pagoda-shaped spring, comprising a handle, a knob is arranged on the outer wall surface of the handle, and one end of the knob is welded and fixed to the surface of the handle, a sleeve is arranged on the upper end of the handle, and one end of the sleeve is welded and fixed to the end of the handle, a connecting rod is slidably sleeved inside the sleeve, a spring positioning platform sleeved with the pagoda-shaped spring is arranged on the upper end of the connecting rod, a limiting notch running through the interior of the spring positioning platform is provided at the middle position of the spring positioning platform, and a threaded groove is provided inside the spring positioning platform. The pagoda-shaped spring is covered on the spring positioning platform, and the transverse rib part of the pagoda-shaped spring is inserted into the limiting notch, so that when the spring positioning platform is rotated, the pagoda-shaped spring can be linked together, so that when installing this type of spring, the knob of the handle part can be cooperated to achieve stable rotation installation.

Description

Technical Field

[0001] The utility model relates to the technical field of pagoda-shaped spring installation, in particular to a special tool for installing a pagoda-shaped spring. Background Art

[0002] A pagoda spring, also called a conical spring or drum spring, is a special type of helical spring in which each turn of the spring is smaller in diameter than the previous turn, forming a conical structure.

[0003] Such springs are often used in compression or torsion applications where a large displacement or force needs to be provided within a limited space.

[0004] The conventional pagoda-shaped spring is divided into three areas: a conical spire spring, a cylindrical body spring, and a tail rib (used for force operation during spring installation) arranged laterally at the tail.

[0005] The advantages of pagoda springs mainly include the following points:

[0006] Large stroke: Due to its special conical structure, the pagoda spring can provide a long stroke when compressed, which is very beneficial for occasions requiring large displacement;

[0007] Space Savings: Compared with traditional coil springs, pagoda springs can occupy less space for the same compression stroke, which makes it particularly valuable in space-constrained applications;

[0008] Smoothness of force: The force of pagoda-type springs during compression is usually smoother and more continuous, which helps improve the comfort of the equipment and reduce vibration.

[0009] In the prior art, in chemical production equipment, vertical hydrogenation reactors, and synthesis reactors, when installing the spring at the bottom of the riser, the operator clamps the cross ribs of the spring with pliers and uses brute force to force the spring into the pipe wall opening, so that the spring stays in the pipe wall. The depth and size are inconsistent, and the height of the spring wheelbase interval is inconsistent. This will affect the weight and quantity of the catalyst installed in the riser, affecting the uneven effects of hydrogenation and synthesis reactions. The installation with pliers will take a long time and be laborious for the operator, and will also cause the spring to deform and be damaged. Utility Model Content

[0010] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a special tool for installing a pagoda-shaped spring.

[0011] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0012] A special tool for installing a pagoda-shaped spring is designed, comprising a handle, a knob is provided on the outer wall surface of the handle, and one end of the knob is welded and fixed to the surface of the handle, a sleeve is provided on the upper end of the handle, and one end of the sleeve is welded and fixed to the end of the handle, a connecting rod is slidably sleeved inside the sleeve, a spring positioning platform sleeved with the pagoda-shaped spring is provided on the upper end of the connecting rod, a limiting notch penetrating the interior of the spring positioning platform is provided at the middle position of the spring positioning platform, a threaded groove is provided inside the spring positioning platform, a threaded column is provided on the upper end of the connecting rod, the outer thread surface of the threaded column and the inner thread surface of the threaded groove are threadedly butted with each other, and one end of the threaded column is welded and fixed to the upper end of the connecting rod.

[0013] In detail, the number of the knobs is at least two, and the knobs are welded and fixed along the outer wall of the handle.

[0014] In detail, the surface of the handle is provided with a plurality of convex point structures.

[0015] In detail, the connecting rod is provided with grooves inside, and the number of the grooves is at least four and they are evenly distributed up and down.

[0016] In detail, a bayonet is arranged inside the groove, the surface of the bayonet is slidably sleeved with the inner wall surface of the groove, and the end of the bayonet is a curved surface structure.

[0017] In detail, a return spring is arranged inside the groove, and two ends of the return spring are respectively fixedly assembled with the inner wall surface of the groove and the surface of the bayonet.

[0018] In detail, a pin hole penetrating the interior of the sleeve is provided on the inner wall surface of the sleeve, and the surface of the latch pin is slidably penetrated by the interior of the pin hole.

[0019] The design scheme proposed by the utility model has the following beneficial effects during application:

[0020] 1. Cover the pagoda-shaped spring on the spring positioning platform, and insert the transverse rib of the pagoda-shaped spring into the limiting notch, so that when the spring positioning platform rotates, the pagoda-shaped spring can be linked together. Therefore, when installing this type of spring, the knob of the handle part can be used to achieve stable rotation installation.

[0021] 2. The connecting rod and the sleeve can be adjusted for telescopic adjustment, and the handle length can be adjusted according to the installation depth of the pagoda-shaped spring. The telescopic fixation of the connecting rod and the sleeve can be achieved by cooperating with any one of the bayonet pins and the pin hole at the corresponding position. This special tool makes the processing technology simple, the assembly simple, safe and reliable, saves material costs, saves spring assembly time, saves labor, and makes the spring accurately positioned in depth in the tube and the wheelbase interval consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a front structural schematic diagram of the utility model;

[0024] Figure 3 It is an enlarged schematic diagram of point a of the present utility model.

[0025] In the figure: 10, handle; 11, knob; 12, sleeve; 13, connecting rod; 14, spring positioning platform; 15, limiting notch; 16, threaded groove; 17, threaded column; 20, groove; 21, latch; 22, return spring; 23, pin hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-Figure 3 A special tool for installing a pagoda-shaped spring comprises a handle 10, a knob 11 is arranged on the outer wall surface of the handle 10, and one end of the knob 11 is welded and fixed to the surface of the handle 10, a sleeve 12 is arranged on the upper end of the handle 10, and one end of the sleeve 12 is welded and fixed to the end of the handle 10, a connecting rod 13 is slidably sleeved inside the sleeve 12, a spring positioning platform 14 which is sleeved with the pagoda-shaped spring is arranged on the upper end of the connecting rod 13, a limiting notch 15 which runs through the inner part of the spring positioning platform 14 is arranged in the middle position of the spring positioning platform 14, a threaded groove 16 is arranged inside the spring positioning platform 14, a threaded column 17 is arranged on the upper end of the connecting rod 13, and the outer thread surface of the threaded column 17 and the inner thread surface of the threaded groove 16 are threadedly connected to each other, and one end of the threaded column 17 is welded and fixed to the upper end of the connecting rod 13.

[0028] It should be further explained that the number of the knobs 11 is at least two, and the knobs 11 are welded and fixed along the outer wall of the handle 10, so as to facilitate manual rotation operation.

[0029] It should be further explained that a plurality of convex structures are provided on the surface of the handle 10 , which can provide an anti-slip effect when the handle 10 is held.

[0030] It should be further explained that a groove 20 is provided inside the connecting rod 13. The number of the grooves 20 is at least four and they are evenly spaced vertically. The telescopic adjustment of the connecting rod 13 and the sleeve 12 can be performed according to the actual installation depth of the pagoda-shaped spring.

[0031] It should be further explained that a bayonet 21 is provided inside the groove 20, and the surface of the bayonet 21 is slidably sleeved with the inner wall surface of the groove 20. The end of the bayonet 21 is an arc surface structure. When the sleeve 12 is squeezed, the bayonet 21 can enter the groove 20 by itself through the arc surface, and can also be pressed manually, which is simple and quick to operate.

[0032] It should be further explained that a return spring 22 is provided inside the groove 20 , and the two ends of the return spring 22 are respectively fixedly assembled with the inner wall surface of the groove 20 and the surface of the latch 21 , and the return spring 22 can ensure the stable telescopic return of the latch 21 .

[0033] It should be further explained that a pin hole 23 is provided on the inner wall surface of the sleeve 12 and passes through the interior thereof. The surface of the bayonet 21 and the interior of the pin hole 23 are slidably penetrated. The connecting rod 13 and the sleeve 12 can be telescopically adjusted, and the length of the handle 10 can be adjusted according to the installation depth of the pagoda-shaped spring. By cooperating and penetrating any one of the bayonet pins 21 with the pin hole 23 at the corresponding position, the telescopic fixation of the connecting rod 13 and the sleeve 12 can be achieved.

[0034] Working method: During use, the machined parts are first assembled into one, the connecting rod 13 and the spring positioning platform 14 are connected, and the external thread surface of the threaded column 17 and the internal thread surface of the threaded groove 16 are threadedly connected with each other to achieve the fixing of the connecting rod 13 and the spring positioning platform 14.

[0035] Then, when installing the bottom spring of the reactor riser, first align the bottom transverse rib of the special pagoda-shaped spring with the 3mm limit notch 15 in the middle of the spring positioning platform 14. The outer shape of this special tool mold base is measured and processed according to the inner diameter of the spring to ensure that the spring and the mold body fit closely.

[0036] The design and processing advantages of the special tool of the utility model are that a 3mm limiting notch 15 is slotted in the middle of the spring positioning platform 14, and a 45° arc angle is processed on both sides. The special tool is designed with a left-hand thread. During the use and installation of the spring, the more it is rotated, the tighter it will be without loosening. The depth and size of the spring in the tube can be adjusted according to the extension and retraction of the sleeve 12 and the connecting rod 13, and the distance between the handle 10 and the spring positioning platform 14 can be adjusted, thereby facilitating manual operation of the knob 11.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special tool for installing a pagoda-shaped spring, comprising a handle (10), characterized in that: A knob (11) is arranged on the outer wall surface of the handle (10), and one end of the knob (11) is welded and fixed to the surface of the handle (10); a sleeve (12) is arranged on the upper end of the handle (10), and one end of the sleeve (12) is welded and fixed to the end of the handle (10); a connecting rod (13) is slidably sleeved inside the sleeve (12); a spring positioning platform (14) sleeved with a pagoda-shaped spring is arranged on the upper end of the connecting rod (13); a limiting notch (15) penetrating the interior of the spring positioning platform (14) is provided at the middle position of the spring positioning platform (14); a thread groove (16) is provided inside the spring positioning platform (14); a thread column (17) is arranged on the upper end of the connecting rod (13), and the external thread surface of the thread column (17) and the internal thread surface of the thread groove (16) are threadedly connected to each other, and one end of the thread column (17) is welded and fixed to the upper end of the connecting rod (13).

2. The special tool for installing a pagoda-shaped spring according to claim 1, characterized in that: The number of the knobs (11) is at least two, and the knobs (11) are fixed by welding along the outer wall of the handle (10).

3. The special tool for installing a pagoda-shaped spring according to claim 1, characterized in that: The surface of the handle (10) is provided with a plurality of convex point structures.

4. The special tool for installing a pagoda-shaped spring according to claim 1, characterized in that: The connecting rod (13) is provided with grooves (20) inside, and the number of the grooves (20) is at least four and they are evenly spaced vertically.

5. The special tool for installing a pagoda-shaped spring according to claim 4, characterized in that: A bayonet (21) is arranged inside the groove (20), the surface of the bayonet (21) is slidably sleeved with the inner wall surface of the groove (20), and the end of the bayonet (21) is a curved surface structure.

6. The special tool for installing a pagoda-shaped spring according to claim 5, characterized in that: A return spring (22) is arranged inside the groove (20), and two ends of the return spring (22) are respectively fixedly assembled with the inner wall surface of the groove (20) and the surface of the latch (21).

7. The special tool for installing a pagoda-shaped spring according to claim 6, characterized in that: The inner wall surface of the sleeve (12) is provided with a pin hole (23) penetrating the interior thereof, and the surface of the latch pin (21) is slidably arranged to penetrate the interior of the pin hole (23).

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