Ton barrel packaging barrel cover sealing torque wrench device
Patent Information
- Application Number
- CN202522114852.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0002]目前,在精细化工和医药中间体行业的吨桶产品包装过程中,封盖作业普遍存在力矩控制不精确的难题
[0013] Compared with the prior art, this utility model provides a torque wrench device for sealing the lid of a ton container, which has the following advantages: the use of a preset torque wrench in conjunction with the ton container lid wrench makes it easy to operate, improves efficiency, is lightweight and labor-saving, utilizes an air bladder to enhance the clamping force on the lid and prevent slippage, and the square plug and tension spring, together with the circular limiting steel ball and circular groove, ensure a stable connection between the preset torque wrench and the ton container lid wrench.
Smart Images

Figure CN224751180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of torque wrench devices, and in particular to a torque wrench device for sealing the lid of a ton container packaging barrel. Background Technology
[0002] Currently, in the process of packaging tonne containers for fine chemical and pharmaceutical intermediate products, there is a common problem of inaccurate torque control during the capping operation.
[0003] Currently, there are no torque wrenches specifically designed for sealing ton container packaging. Most manufacturers use manual tightening wrenches for ton container packaging. When sealing the lid, it is easy to cause the lid to break due to excessive tightness or insufficient tightening torque, resulting in product leakage or contamination.
[0004] Existing technologies rely on the operator's experience and feel when in use, and cannot quantitatively control the sealing torque, which can easily lead to lid deformation. Conventional wrenches do not provide sufficient clamping force during operation, and steel tools are prone to rusting in corrosive environments, resulting in a short lifespan. Furthermore, the rigid clamping method can easily damage the lid or cause slippage. Utility Model Content
[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to provide a torque wrench device for sealing the lid of a ton container packaging barrel.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A torque wrench device for sealing the lid of a ton container packaging barrel includes a preset torque wrench with a drive square head, a ton container lid wrench mounted on the drive square head, a support frame fixedly connected to the preset torque wrench, a sliding groove I on the support frame, a limit rod installed in the sliding groove I, a limit block fixedly connected to the top of the limit rod, and a sliding groove II inside the ton container lid wrench, with a limit groove at the bottom of the sliding groove II.
[0008] To provide air to the air outlet pipe, preferably, a piston chamber is provided on the inner wall of the ton barrel lid wrench, a piston rod is installed in the piston chamber, a return spring is sleeved on the piston rod, a piston plate is fixedly connected to the top of the piston rod, one end of the return spring is fixedly connected to the bottom of the piston chamber, and the other end is fixedly connected to the piston plate, and a communication port is provided at the top of the piston chamber, and the piston plate drives the piston rod to move synchronously in the piston chamber.
[0009] To allow air to circulate into the vent pipe, preferably, a one-way vent pipe connected to the outer wall of the ton barrel lid wrench is installed in the piston chamber, a first vent pipe is installed at the bottom of the piston chamber, a first vent valve is installed in the first vent pipe, and a second vent pipe is installed at the bottom of the piston chamber, a second vent valve is installed in the second vent pipe.
[0010] To strengthen the clamping force on the barrel lid and prevent slippage, preferably, a slot is provided below the barrel lid wrench of the ton barrel. Multiple clamping airbags are fixedly connected to the inner wall of the slot. The second air outlet pipe is connected to the clamping airbags. A second return spring is fixedly connected at the connection between the second air outlet pipe and the clamping airbags. A pad is fixedly connected to the second return spring. The pad is in close contact with the inner wall of the clamping airbag to enhance the clamping force.
[0011] To ensure a stable connection between the preset torque wrench and the ton container lid wrench, preferably, the ton container lid wrench has an installation limiting groove, and a circular retaining groove is provided in the installation limiting groove. A tension spring is installed in the end of the air outlet pipe that communicates with the installation limiting groove. A square retaining plug is fixedly connected to the other end of the tension spring. One end of the tension spring is fixedly connected to the inner wall of the air outlet pipe, and the other end is fixedly connected to the square retaining plug.
[0012] To enhance the stability between the preset torque wrench and the ton barrel lid wrench, preferably, the inner wall of the drive square head is provided with a spring mounting groove, a return spring three is installed in the spring mounting groove, and a circular limiting steel ball is fixedly connected to the other end of the return spring three, and the circular limiting steel ball engages with the circular slot.
[0013] Compared with the prior art, this utility model provides a torque wrench device for sealing the lid of a ton container, which has the following advantages: the use of a preset torque wrench in conjunction with the ton container lid wrench makes it easy to operate, improves efficiency, is lightweight and labor-saving, utilizes an air bladder to enhance the clamping force on the lid and prevent slippage, and the square plug and tension spring, together with the circular limiting steel ball and circular groove, ensure a stable connection between the preset torque wrench and the ton container lid wrench. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0015] Figure 2 A cross-sectional view of this utility model Figure 1 ;
[0016] Figure 3 A cross-sectional view of this utility model Figure 2 ;
[0017] Figure 4 A cross-sectional view of this utility model Figure 3 ;
[0018] Figure 5 A cross-sectional view of this utility model Figure 1 Part A;
[0019] Figure 6 A cross-sectional view of this utility model Figure 2 Part B;
[0020] Figure 7 A cross-sectional view of this utility model Figure 3 Part C.
[0021] In the diagram: 1. Preset torque wrench; 101. Drive square head; 102. Return spring three; 103. Circular limit ball; 2. Support frame; 201. Sliding groove one; 202. Limiting rod; 203. Limiting block; 3. Ton barrel lid wrench; 301. Slot; 302. Sliding groove two; 303. Limiting groove; 304. Piston chamber; 305. Piston rod; 306. Return spring one; 307. Piston plate; 308. Connecting port one; 309. Installation limit groove; 310. Circular slot; 4. One-way air inlet pipe; 401. Air outlet pipe one; 402. Air outlet valve one; 403. Air outlet pipe two; 404. Air outlet valve two; 405. Tension spring; 406. Square plug; 407. Return spring two; 408. Pad ball; 409. Clamping airbag. Detailed Implementation
[0022] 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.
[0023] Example 1:
[0024] Reference Figure 1-7 A torque wrench device for sealing the lid of a ton container packaging barrel includes a preset torque wrench 1, a standard drive square head 101 on the preset torque wrench 1, and a ton container lid wrench 3 installed on the drive square head 101.
[0025] The ton container lid wrench (3) is made of PEEK material. PEEK is a high-performance engineering plastic with mechanical properties close to those of metals. Its tensile strength can reach over 100MPa, and its elastic modulus is about 3.6GPa. It can withstand high torque loads without plastic deformation or breakage. In addition, its density is only 1.3g / cm³. 3 Around, much lower than steel (approximately 7.8 g / cm³). 3 ) and aluminum (approximately 2.7 g / cm³) 3This significantly reduces tool weight and operator fatigue. It also solves the problem of inaccurate torque wrench torque caused by the excessive weight of steel ton container lids. Under high temperatures or continuous loads, PEEK exhibits minimal deformation, ensuring dimensional stability of the wrench during tightening and preventing torque transmission failure due to material creep. Its high surface hardness and low coefficient of friction reduce wear on the contact surface with the lid, preventing slippage and ensuring accurate torque transmission. It is resistant to most chemicals (such as acids, alkalis, and solvents), making it suitable for harsh environments and extending tool life.
[0026] The ton container lid wrench 3 is fitted onto the drive square head 101 via an installation limiting groove 309 on its upper part. A return spring 102 and a circular limiting steel ball 103 are installed in a spring mounting groove on the inner wall of the drive square head 101. A circular retaining groove 310 is formed within the installation limiting groove 309 of the ton container lid wrench 3. During installation, pressure is applied to fit the ton container lid wrench 3 onto the drive square head 101. The circular limiting steel ball 103 is compressed and springs back into the circular retaining groove 310. A support frame 2 is fixedly connected to the preset torque wrench 1. The support frame 2 has a sliding groove 201, within which a sliding limiting rod 202 is fitted. A limiting block 203 is fixed to the top of the limiting rod 202. The ton container lid wrench 3 has a sliding groove 302 inside, with a limiting groove 303 at its bottom. The limiting block 203 cooperates with the limiting groove 303.
[0027] Example 2:
[0028] Reference Figure 1-7 A torque wrench device for sealing the lid of a ton container packaging barrel is basically the same as in Embodiment 1, but with a further improvement: a piston cavity 304 is formed in the inner wall of the ton container lid wrench 3. A piston rod 305 is installed in the piston cavity 304, and a piston plate 307 is fixed to the top of the piston rod 305 and fitted with a return spring 306. One end of the return spring 306 rests on the bottom of the piston cavity 304, and the other end is connected to the piston plate 307. The top of the piston cavity 304 is connected to the sliding groove 302 through a connecting port 308.
[0029] Meanwhile, the piston chamber 304 is connected to three air passages. The one-way air inlet pipe 4 leads to the outside of the ton container lid wrench 3, allowing only external air to be drawn in. The first air outlet pipe 401 is equipped with a one-way air outlet valve 402, and contains a tension spring 405 and a square plug 406. One end of the spring is fixed to the pipe wall, and the other end is connected to a buckle. The second air outlet pipe 403 is equipped with a second one-way air outlet valve 404. The second air outlet pipe 403 ultimately leads to multiple clamping airbags 409 fixed to the inner wall of the lower end slot 301 of the ton container lid wrench 3. At the connection point, a second return spring 407 and a ball pad 408 are provided.
[0030] During use, the operator first installs the ton container lid into the slot 301, then inserts the limiting rod 202 along the sliding groove 302 of the ton container lid wrench 3. At this time, the end of the limiting rod 202 enters the piston chamber 304 through the connecting port 308, pushing the piston rod 305 and the piston plate 307 fixed at its top to move together. This process compresses the return spring 306, and at the same time, the air below the piston plate 307 is compressed. When the piston plate 307 moves down to compress the air, the one-way air inlet pipe 4 installed on the piston chamber 304 is closed to prevent gas leakage. The compressed air pressure increases, and the air enters the pipeline through the air outlet valve 402 in the air outlet pipe 401 and the air outlet valve 404 in the air outlet pipe 403.
[0031] At this time, the compressed air from the piston chamber 304 rushes out through the air outlet pipe 401, pushing the square plug 406 in the pipe to move outward against the tension of the tension spring 405. The square plug 406 finally abuts against the side of the drive square head 101 that has been inserted into the installation limit groove 309, and cooperates with the circular limit steel ball 103 inside the drive square head 101 to enhance the connection stability and prevent the drive square head 101 from shaking or disengaging from the ton bucket lid wrench 3.
[0032] At the same time, another stream of compressed air enters through the second air outlet pipe 403 into multiple clamping airbags 409 fixed on the inner wall of the slot 301. After the airbags are inflated, they expand and deform rapidly. At this time, the second return spring 407 supports the pad ball 408, which enhances the clamping force between the surface of the clamping airbag 409 and the barrel lid. The flexible properties of the clamping airbag 409 better fit the surface of the barrel lid, preventing slippage and damage to the barrel lid, and making the clamping more stable.
[0033] After installing the bucket lid, the worker rotates the limiting rod 202 to disengage the limiting block 203 from the limiting groove 303, and pulls out the limiting rod 202. At this time, the return spring 306 pulls the piston rod 305 and piston plate 307 to reset within the piston chamber 304. The air pressure inside the clamping airbag 409 decreases, reducing the clamping force on the bucket lid. The worker then removes the torque wrench 1 and the bucket lid wrench 3 together. During removal, the clamping airbag 409 contracts, causing the pad ball 408 to move, and the return spring 407 to move. When the clamping force on the ton container lid is reduced, air will be supplied to the piston chamber 304 through the one-way air inlet pipe 4. During the removal process, because the clamping airbag 409 is a sealed component, the air inside the clamping airbag 409 will flow back to the piston chamber 304 through the second air outlet pipe 403. Then, under pressure, the tension spring 405 and the square plug 406 will be further squeezed through the first air outlet pipe 401 and the first air outlet valve 402 to prevent the ton container lid wrench 3 from falling off, making it easier to install the next ton container lid.
[0034] The use of a preset torque wrench 1 and a ton container lid wrench 3 is convenient, efficient, and labor-saving. The clamping airbag 409 enhances the clamping force on the lid and prevents slippage. The square plug 406 and the tension spring 405, together with the circular limiting steel ball 103 and the circular groove 310, ensure a stable connection between the preset torque wrench 1 and the ton container lid wrench 3.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A torque wrench device for sealing the lid of a ton container packaging barrel, comprising a preset torque wrench (1), wherein a drive square head (101) is mounted on the preset torque wrench (1), and a ton container lid wrench (3) is mounted on the drive square head (101), characterized in that, The preset torque wrench (1) is fixedly connected to a support frame (2), and the support frame (2) is provided with a sliding groove (201). A limit rod (202) is installed in the sliding groove (201), and a limit block (203) is fixedly connected to the top of the limit rod (202). The ton barrel lid wrench (3) is provided with a sliding groove (302), and a limit groove (303) is provided at the bottom of the sliding groove (302).
2. The torque wrench device for sealing the lid of a ton container packaging barrel according to claim 1, characterized in that, The inner wall of the barrel lid wrench (3) of the ton barrel is provided with a piston chamber (304). A piston rod (305) is installed in the piston chamber (304). A return spring (306) is sleeved on the piston rod (305). A piston plate (307) is fixedly connected to the top of the piston rod (305). One end of the return spring (306) is fixedly connected to the bottom of the piston chamber (304), and the other end is fixedly connected to the piston plate (307). A communication port (308) is provided at the top of the piston chamber (304). The piston plate (307) drives the piston rod (305) to move synchronously in the piston chamber (304).
3. The torque wrench device for sealing the lid of a ton container packaging barrel according to claim 2, characterized in that, The piston chamber (304) is equipped with a one-way air inlet pipe (4) that connects to the outer wall of the ton barrel lid wrench (3). The bottom of the piston chamber (304) is equipped with an air outlet pipe (401), and an air outlet valve (402) is installed inside the air outlet pipe (401). The bottom of the piston chamber (304) is equipped with an air outlet pipe (403), and an air outlet valve (404) is installed inside the air outlet pipe (403).
4. The torque wrench device for sealing the lid of a ton container packaging barrel according to claim 3, characterized in that, The barrel lid wrench (3) has a slot (301) below it. Multiple clamping airbags (409) are fixedly connected to the inner wall of the slot (301). The second air outlet pipe (403) is connected to the clamping airbag (409). A second return spring (407) is fixedly connected at the connection between the second air outlet pipe (403) and the clamping airbag (409). A pad ball (408) is fixedly connected to the second return spring (407). The pad ball (408) is close to the inner wall of the clamping airbag (409) to enhance the clamping force.
5. The torque wrench device for sealing the lid of a ton container packaging barrel according to claim 3, characterized in that, The ton barrel lid wrench (3) is provided with an installation limiting groove (309), and a circular slot (310) is provided in the installation limiting groove (309). A tension spring (405) is installed in the end of the air outlet pipe (401) that is connected to the installation limiting groove (309). A square plug (406) is fixedly connected to the other end of the tension spring (405). One end of the tension spring (405) is fixedly connected to the inner wall of the air outlet pipe (401), and the other end is fixedly connected to the square plug (406).
6. The torque wrench device for sealing the lid of a ton container packaging barrel according to claim 5, characterized in that, The inner side wall of the drive head (101) is provided with a spring mounting groove, and a reset spring three (102) is installed in the spring mounting groove. A circular limiting steel ball (103) is fixedly connected to the other end of the reset spring three (102), and the circular limiting steel ball (103) engages with the circular slot (310).