Adjustable limiting self-locking gas spring for vending cart
Patent Information
- Application Number
- CN202522693080.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-19
AI Technical Summary
[0004]本实用新型的目的在于提供一种售货车可调限位自锁气弹簧，解决了现有气杆在货车展翼防坠落，闭合等应用场景下限位调节不便，设备使用的安全性与便利性较低的问题
[0010]本实用新型的售货车可调限位自锁气弹簧，在所述活塞杆拉伸出所述外筒体时，将所述复位套取下，所述限位簧片提供的弹力将所述限位缸套顶偏，使得所述限位缸套与所述外筒体处于偏心状态，此时由于所述外筒体与所述限位缸套处于偏心状态，所述外筒体无法进入所述限位缸套的内部，此时所述活塞杆无法收起，提升了装置的稳定，在需要收起时，将所述复位套套在所述防护套的外侧，此时所述复位套与所述防护套配合，将所述限位缸套拉回，使得所述限位缸套与所述外筒体处于同心状态，此时可以将所述外筒体沿着所述活塞杆收回，解决了现有气杆在货车展翼防坠落，闭合等应用场景下限位调节不便，设备使用的安全性与便利性较低的问题。
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Figure CN224903863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas spring technology, and in particular to an adjustable limit self-locking gas spring for vending carts. Background Technology
[0002] The existing C-type vending carts have gas springs supporting the opening of both the left and right wings, with each wing supported by two standard 950N gas springs.
[0003] Currently, common gas springs play an important role in support and adjustment, but they have many shortcomings. Traditional gas springs mainly rely on air pressure for support and limiting. However, in some specific scenarios, such as vending carts with flaps that have no limit after opening, there is a safety risk of the flaps falling. Adding a limit switch requires personnel to assist in resetting the gas spring limit switch when closing the flaps, which is not convenient enough. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable limit self-locking gas spring for vending carts, which solves the problems of inconvenient limit adjustment and low safety and convenience of the equipment in application scenarios such as anti-fall and closure of vending cart wings.
[0005] To achieve the above objectives, this utility model provides an adjustable limiting self-locking gas spring for vending carts, comprising a piston rod, a limiting cylinder sleeve, a limiting spring, and a protective sleeve; the limiting cylinder sleeve is threadedly connected to the piston rod and located on the outside of the piston rod, the limiting spring is connected to the piston rod and located inside the limiting cylinder sleeve, and the protective sleeve is threadedly connected to the limiting cylinder sleeve and located at the end of the limiting cylinder sleeve away from the limiting spring.
[0006] The adjustable limit self-locking gas spring of the vending vehicle also includes an outer cylinder, which is slidably connected to the piston rod and located outside the limit cylinder liner.
[0007] The adjustable limit self-locking gas spring of the vending vehicle also includes a reset sleeve, which is slidably connected to the outer cylinder and located on the outside of the outer cylinder.
[0008] The adjustable limit self-locking gas spring of the vending vehicle also includes two ball head sleeves. One ball head sleeve is fixedly connected to the piston rod and located outside the piston rod, while the other ball head sleeve is fixedly connected to the outer cylinder and located outside the outer cylinder.
[0009] The adjustable limit self-locking gas spring of the vending cart also includes two gas rod ball heads, which are slidably connected to the ball head sleeve and are located inside the ball head sleeve respectively.
[0010] This utility model discloses an adjustable limiting self-locking gas spring for vending trucks. When the piston rod extends out of the outer cylinder, the reset sleeve is removed. The elastic force provided by the limiting spring plate deflects the limiting cylinder sleeve, causing the limiting cylinder sleeve and the outer cylinder to be in an eccentric state. At this time, because the outer cylinder and the limiting cylinder sleeve are in an eccentric state, the outer cylinder cannot enter the interior of the limiting cylinder sleeve, and the piston rod cannot be retracted, thus improving the stability of the device. When it is necessary to retract, the reset sleeve is placed on the outside of the protective sleeve. At this time, the reset sleeve and the protective sleeve cooperate to pull the limiting cylinder sleeve back, so that the limiting cylinder sleeve and the outer cylinder are in a concentric state. At this time, the outer cylinder can be retracted along the piston rod. This solves the problem of inconvenient limiting adjustment and low safety and convenience of the existing gas spring in application scenarios such as anti-fall and closure of vending truck wings. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0012] Figure 1 This is a schematic diagram of the overall structure of the adjustable limit self-locking gas spring for the vending cart according to the first embodiment of this utility model.
[0013] Figure 2 This is the utility model Figure 1 A cross-sectional view at point B.
[0014] In the diagram: 101-piston rod, 102-limit cylinder liner, 103-limit spring, 104-protective sleeve, 105-outer cylinder, 106-reset sleeve, 107-ball head sleeve, 108-pneumatic rod ball head. Detailed Implementation
[0015] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0016] The first embodiment of this application is as follows: Please see Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the overall structure of the adjustable limit self-locking gas spring for the vending cart according to the first embodiment of this utility model. Figure 2 This is the utility model Figure 1The cross-sectional view at point B shows that this utility model provides an adjustable limiting self-locking gas spring for vending trucks, including a piston rod 101, a limiting cylinder liner 102, a limiting spring 103, a protective sleeve 104, an outer cylinder 105, a reset sleeve 106, a ball head sleeve 107, and a gas spring ball head 108. The aforementioned solution solves the problem that the existing gas springs are inconvenient to limit and adjust in application scenarios such as anti-falling and closing of vending truck wings, and the safety and convenience of using the equipment are relatively low.
[0017] In this specific embodiment, the limiting cylinder sleeve 102 is threadedly connected to the piston rod 101 and located outside the piston rod 101. The limiting spring 103 is connected to the piston rod 101 and located inside the limiting cylinder sleeve 102. The protective sleeve 104 is threadedly connected to the limiting cylinder sleeve 102 and located at the end of the limiting cylinder sleeve 102 away from the limiting spring 103. The piston rod 101 provides support for the limiting cylinder sleeve 102 and the limiting spring 103. The limiting cylinder sleeve 102 cooperates with the outer cylinder 105 to provide a limiting function for the outer cylinder 105. The limiting spring 103 provides a limiting function for the limiting cylinder sleeve 102. The protective sleeve 104 cooperates with the reset sleeve 106 to provide a limiting function for the outer cylinder 105. When the piston rod 101 extends out of the outer cylinder 105, the reset sleeve 106 is removed. The elastic force provided by the limiting spring 103 pushes the limiting cylinder sleeve 102 off-center, making the limiting cylinder sleeve 102 and the outer cylinder 105 eccentric. At this time, because the outer cylinder 105 and the limiting cylinder sleeve 102 are eccentric, the outer cylinder 105 cannot enter the interior of the limiting cylinder sleeve 102. At this time, the piston rod 101 cannot be retracted, which improves the stability of the device. When it is necessary to retract, the reset sleeve 106 is put on the outside of the protective sleeve 104. At this time, the reset sleeve 106 cooperates with the protective sleeve 104 to pull the limiting cylinder sleeve 102 back, making the limiting cylinder sleeve 102 and the outer cylinder 105 concentric. At this time, the outer cylinder 105 can be retracted along the piston rod 101.
[0018] The outer cylinder 105 is slidably connected to the piston rod 101 and is located outside the limiting cylinder liner 102. The outer cylinder 105 is used to house the piston rod 101.
[0019] Secondly, the reset sleeve 106 is slidably connected to the outer cylinder 105 and is located on the outside of the outer cylinder 105. The reset sleeve 106 cooperates with the protective sleeve 104 to provide a reset function for the limiting cylinder liner 102.
[0020] Furthermore, there are two ball head sleeves 107. One ball head sleeve 107 is fixedly connected to the piston rod 101 and located outside the piston rod 101. The other ball head sleeve 107 is fixedly connected to the outer cylinder 105 and located outside the outer cylinder 105. The ball head sleeve 107 is used to provide support for the gas rod ball head 108.
[0021] Finally, there are two gas spring ball joints 108. The two gas spring ball joints 108 are slidably connected to the ball joint sleeve 107 and are located inside the ball joint sleeve 107 respectively. The gas spring ball joints 108 are used to install the gas spring on the wings of the vending vehicle.
[0022] Using the adjustable limiting self-locking gas spring of the vending cart in this embodiment, when the piston rod 101 extends the outer cylinder 105, the reset sleeve 106 is removed. The elastic force provided by the limiting spring 103 pushes the limiting cylinder sleeve 102 off-center, causing the limiting cylinder sleeve 102 and the outer cylinder 105 to be in an eccentric state. At this time, because the outer cylinder 105 and the limiting cylinder sleeve 102 are in an eccentric state, the outer cylinder 105 cannot enter the interior of the limiting cylinder sleeve 102, and the piston rod 101 cannot retract. This improves the stability of the device. When it needs to be retracted, the reset sleeve 106 is placed on the outside of the protective sleeve 104. At this time, the reset sleeve 106 cooperates with the protective sleeve 104 to pull back the limiting cylinder sleeve 102, so that the limiting cylinder sleeve 102 and the outer cylinder 105 are in a concentric state. At this time, the outer cylinder 105 can be retracted along the piston rod 101. This solves the problem that the existing gas rod is inconvenient to adjust the limit in application scenarios such as anti-fall and closing of truck wings, and the safety and convenience of the equipment are low.
[0023] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. An adjustable limit self-locking gas spring for a vending cart, comprising a piston rod, characterized in that, It also includes limit cylinder liners, limit springs, and protective sleeves; The limiting cylinder sleeve is threadedly connected to the piston rod and is located outside the piston rod. The limiting spring is connected to the piston rod and is located inside the limiting cylinder sleeve. The protective sleeve is threadedly connected to the limiting cylinder sleeve and is located at the end of the limiting cylinder sleeve away from the limiting spring.
2. The adjustable limit self-locking gas spring for vending carts as described in claim 1, characterized in that, The adjustable limit self-locking gas spring of the vending vehicle also includes an outer cylinder, which is slidably connected to the piston rod and located outside the limit cylinder liner.
3. The adjustable limit self-locking gas spring for vending carts as described in claim 2, characterized in that, The adjustable limit self-locking gas spring of the vending vehicle also includes a reset sleeve, which is slidably connected to the outer cylinder and located on the outside of the outer cylinder.
4. The adjustable limit self-locking gas spring for vending carts as described in claim 3, characterized in that, The adjustable limit self-locking gas spring of the vending cart also includes two ball head sleeves. One ball head sleeve is fixedly connected to the piston rod and located outside the piston rod, and the other ball head sleeve is fixedly connected to the outer cylinder and located outside the outer cylinder.
5. The adjustable limit self-locking gas spring for vending carts as described in claim 4, characterized in that, The adjustable limit self-locking gas spring of the vending cart also includes two gas spring balls, which are slidably connected to the ball head sleeve and are located inside the ball head sleeve respectively.