Constant force adjusting device and rubber tapping machine

Abstract

The utility model provides a constant force adjusting device and a rubber tapping machine, the constant force adjusting device comprises: a housing, a movable space is arranged in the housing, and one end of the housing is provided with a first connecting position; the adjusting assembly is arranged in the moving space and is in sliding connection with the shell; second connecting positions are arranged at the ends, away from the first connecting positions, of the adjusting assemblies; one end of the fixing band is connected with the first connecting position, and the other end of the fixing band is connected with the second connecting position; the shell, the adjusting assembly and the fixing band define a binding caliber for binding a target object. And when the fixing band applies a traction force to the second connecting position to enable the second connecting position to be far away from the first connecting position, the binding caliber is increased. The technical problem to be solved by the utility model is that after a tightening device in the related technology locks a target object, the size of a bound aperture enclosed by the tightening device is fixed, and the bound aperture cannot be enlarged along with the enlargement of the target object.

Description

Technical Field

[0001] This utility model relates to the field of mechanical automation technology, and more specifically, to a constant force adjustment device and a rubber tapping machine. Background Technology

[0002] With the development of science and technology, there is often a need to bind and restrain objects in agriculture, forestry and many industrial fields to ensure the stability of facilities or meet specific process requirements.

[0003] However, the related technology has at least one of the following problems: after the tightening device in the related technology locks the target object, the size of the binding opening is fixed and cannot be increased as the target object grows; for example, when fixing a tree, the tightening device and the support usually cooperate to fix the tree, but as the tree grows, the conventional tightening device cannot adjust the tension according to the tree's growth, resulting in excessive binding that affects the tree's growth. Utility Model Content

[0004] The technical problem solved by this utility model is that, in the related technology, the tightening device has a fixed binding diameter after locking the target object, and it cannot increase as the target object grows larger.

[0005] To solve the above problems, this utility model provides a constant force adjustment device, comprising: a housing with an internal movable space and a first connection position at one end of the housing; an adjustment component disposed in the movable space and slidably connected to the housing; a second connection position at the end of the adjustment component away from the first connection position; at least one fixing strap, one end of which is connected to the first connection position and the other end of which is connected to the second connection position; the housing, the adjustment component, and the fixing strap together form a binding aperture for binding the target object; wherein, when the fixing strap applies a pulling force to the second connection position to move it away from the first connection position, the binding aperture increases.

[0006] Compared with existing technologies, the technical effects achieved by this solution are as follows: Unlike related technologies where the tightening device locks onto the target and the resulting binding diameter is fixed and cannot be adaptively adjusted, this application utilizes the sliding connection between the housing and the adjusting component, along with the fixing belt, to form a binding diameter that binds the target object. By placing the housing on the target object, as the target object's diameter increases, the binding diameter is subjected to external tension transmitted from the target object. This causes the fixing belt to exert a pulling force on the second connection point of the adjusting component, moving it away from the first connection point in the housing. This results in the binding diameter formed by the housing, adjusting component, and fixing belt gradually increasing, thus achieving an adaptive increase in the binding diameter as the target object grows. This ensures effective binding of target objects of different sizes without manual intervention, solving the problem of a fixed binding diameter in traditional tightening devices.

[0007] In one embodiment of this utility model, the housing includes a first mating part and a second mating part assembled into an active space; a first connecting position is disposed on the first mating part; the adjustment component includes a reset part and a gear adjustment structure that are mutually configured; the gear adjustment structure is disposed within the active space and is slidably connected to the first mating part; the second connecting position is located at the end of the gear adjustment structure away from the first connecting position; the reset part is disposed on the first mating part or the second mating part and cooperates with the gear adjustment structure; the reset part applies an elastic force to the gear adjustment structure to restrict it from moving away from the first connecting position.

[0008] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: the first mating part and the second mating part enclose an active space for placing the adjustment component, so that the adjustment component can fully follow the changes of the target object; the reset part applies an elastic force to the gear adjustment structure, so that even if the gear adjustment structure can move away from the first connection position during the process of the binding diameter increasing, the distance of its movement can be limited by the action of the reset part, so that the adjustment of the binding diameter has a certain stability and controllability.

[0009] In one embodiment of this utility model, the first mating part includes: a first through groove formed by a first side wall, a second side wall and a third side wall; a guide groove, which is disposed on at least one of the first side wall and the second side wall; the gear adjustment structure includes: an adjustment plate, which is disposed in the first through groove and slidably connected to the first through groove; a limiting member, which is disposed on the adjustment plate; and a locking rod, which is slidably disposed in the guide groove and forms a stop engagement with the limiting member.

[0010] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The first through groove of the first mating part provides a stable sliding track for the adjusting plate, ensuring that the adjusting plate can only slide along a specific direction, thereby ensuring the accuracy and stability of the movement of the adjusting component relative to the housing; the locking rod is slidably disposed in the guide groove and is movably connected with the limiting member. Through the linkage between the two, when the adjusting plate slides in the first through groove, the limiting member moves with the adjusting plate, causing the locking rod to slide in the guide groove, thereby forming a stable associated motion mechanism during the device adjustment process. Through the cooperation of the locking rod and the guide groove, excessive movement of the adjusting plate is prevented.

[0011] In one embodiment of this utility model, the gear adjustment structure further includes: a plurality of locking teeth arranged at intervals along the extension direction of the adjustment plate; at least a portion of the locking rod is located between any two adjacent locking teeth; the guide groove, the locking teeth and the locking rod cooperate to form a tension adjustment group to adjust the size of the restraint diameter.

[0012] Compared with existing technologies, the technical effects achieved by this solution are as follows: A tension adjustment group is formed by the guide groove, locking teeth, and locking rod, enabling precise adjustment of the restraint diameter. When the diameter of the target object increases, the external tension applied by the target object to the restraint diameter causes the locking rod to move to a position between different locking teeth, thus adapting to changes in the target object. Furthermore, the tension adjustment group formed by the guide groove, locking teeth, and locking rod effectively adjusts the restraint diameter and ensures that the adjustment plate moves only a fixed distance of one locking tooth at a time.

[0013] In one embodiment of this utility model, there is a movable position between any two adjacent locking teeth; the locking teeth include: a first guide surface, a second guide surface and a third guide surface connected to the first guide surface and the second guide surface respectively; the locking rod is movably disposed in the movable position and abuts against the second guide surface.

[0014] Compared with existing technologies, the technical effects achieved by this solution are as follows: During the adjustment of the clamping diameter, the first, second, and third guide surfaces of the locking teeth each perform their respective functions. For example, as the gear adjustment structure moves away from the first connection position, the second guide surface gradually approaches and presses the locking rod. As force is applied, the locking rod moves in a specific direction within the guide groove. When the locking rod disengages from the second guide surface and contacts the third guide surface, it slides smoothly into another movable position along the path formed by the third and first guide surfaces. Through the movement of the locking rod between adjacent locking tooth movable positions, the change in the clamping diameter of the constant force adjustment device can achieve a smooth transition.

[0015] In one embodiment of this utility model, the second mating part includes: a top cover, which is located between the first side wall and the second side wall and away from the first through groove; the reset part includes: a first reset member, which is disposed on the top cover; a mating position, which is disposed at at least one end of the first reset member, and at least a portion of the structure of the locking rod is located in the mating position; wherein, the first reset member is used to apply an elastic force to the locking rod.

[0016] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: based on the locking rod sliding down to another movable position with the cooperation of the first guide surface and the third guide surface, the first reset component set on the top cover can ensure that the locking rod is always subjected to elastic force in the direction of the first connection position, so that the locking rod can tightly abut against the locking teeth.

[0017] In one embodiment of this utility model, the top cover is provided with an movable gap; the reset part further includes: a second reset member, which is provided in the movable gap and located on the side of the locking rod away from the second connection position, and applies a restoring force to the locking rod to reset it.

[0018] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: when the adjustment plate moves away from the first connection position due to the adjustment operation, the second reset member applies a restoring force to the locking rod, which can effectively push the locking rod back to its original position, so that the locking rod can maintain its current position.

[0019] In one embodiment of this utility model, there is at least one guide groove, which includes at least one of the following: inclined groove, concave groove, V-groove and L-groove.

[0020] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the guide groove can be set in a variety of styles, so that the constant force adjustment device can meet the needs of various functions in different application scenarios, and provides a wealth of design possibilities for the adjustment of the restraint diameter, allowing users to flexibly choose the shape of the guide groove according to the actual situation.

[0021] In one embodiment of this utility model, the first connection position is located on the third side wall; the second connection position is located at the end of the adjustment plate away from the first connection position.

[0022] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: the connection positions of the fixing strap and housing with the adjustment components are further clarified, which facilitates the quick installation of the fixing strap by installers.

[0023] In one embodiment of this utility model, a rubber tapping machine is also provided, including: the constant force adjustment device in any of the above embodiments.

[0024] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the technical effects corresponding to any of the above examples, which will not be elaborated here.

[0025] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0026] (1) This application uses the sliding connection between the housing and the adjustment component, and the fixed belt to form a binding diameter for binding the target object. By setting the housing on the target object, when the diameter of the target object increases, the binding diameter is subjected to the external tension transmitted by the target object. This causes the fixed belt to apply a pulling force to the second connection position of the adjustment component to move it away from the first connection position in the housing. This makes the binding diameter formed by the housing, the adjustment component and the fixed belt gradually increase, thereby realizing that the binding diameter increases adaptively with the increase of the target object, ensuring that target objects of different sizes can be effectively bound without manual intervention, thus solving the problem of the binding diameter of traditional tightening devices being fixed.

[0027] (2) The tension adjustment group is formed by the guide groove, the snap-fit ​​teeth and the locking rod, which can achieve fine adjustment of the size of the restraint orifice. When the diameter of the target object increases, the external tension applied by the target object to the restraint orifice will cause the locking rod to move to the movable position between different snap-fit ​​teeth, thereby adapting to the change of the target object. The tension adjustment group is formed by the cooperation of the guide groove, the snap-fit ​​teeth and the locking rod, which can effectively adjust the size of the restraint orifice and ensure that the adjustment plate moves only a fixed distance of one snap-fit ​​tooth each time.

[0028] (3) By setting the guide groove in various styles, this application provides a wealth of design possibilities for the constant force adjustment device to adjust the restraint diameter in different application scenarios and to meet the needs of various functions, so that users can flexibly choose the shape of the guide groove according to the actual situation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of a constant force regulating device provided in the first embodiment of this utility model;

[0031] Figure 2 for Figure 1 A schematic diagram showing the fit between the housing and the adjustment assembly;

[0032] Figure 3 for Figure 2 A schematic diagram of the housing and adjustment components in another view;

[0033] Figure 4 for Figure 2 A schematic diagram of the housing and adjustment components in another view;

[0034] Figure 5 for Figure 4 A cross-sectional view along the AA direction;

[0035] Figure 6 for Figure 2 A schematic diagram of the structure of the first mating part shown in the figure;

[0036] Figure 7 for Figure 2 A schematic diagram of the structure of the second mating part shown in the figure;

[0037] Figure 8 for Figure 2 A schematic diagram of the adjusting plate shown in the figure;

[0038] Figure 9 for Figure 2 The diagram shows the mating relationship between the first reset component and the second reset component.

[0039] Figure 10 for Figure 5 The diagram shows the mating relationship between the first reset component, the second reset component, and the locking lever.

[0040] Figure 11 This is a schematic diagram of the structure of a constant force adjusting device provided in the second embodiment of the present invention;

[0041] Figure 12 This is a schematic diagram of the structure of a constant force adjusting device provided in the third embodiment of the present invention;

[0042] Figure 13 This is a structural schematic diagram of a constant force regulating device provided in the fourth embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100. Constant force adjustment device; 10. Housing; 101. Moving space; 102. First end; 103. Second end; 11. First mating part; 110. First through groove; 111. First side wall; 112. Second side wall; 113. Third side wall; 114. First connecting position; 115. Limiting groove; 12. Second mating part; 121. Top cover; 122. Moving distance; 123. Connecting rod; 13. Guide groove; 14. Concave groove; 141. First guide groove; 142. Second guide groove; 143. Third guide groove; 144. Second included angle; 15. Fourth guide groove; 151. Third included angle; 16. V-groove; 161. Fifth guide groove; 162. Sixth guide groove; 163. 17. Fourth included angle; 17. L-shaped groove; 171. Seventh guide groove; 172. Eighth guide groove; 173. Fifth included angle; 20. Adjustment component; 201. Second connection position; 21. Gear adjustment structure; 210. Adjustment plate; 211. Limiting component; 212. Snap-fit ​​tooth; 2121. First tooth; 2122. Second tooth; 2123. Third tooth; 213. Movable position; 214. First guide surface; 2141. First included angle; 215. Second guide surface; 216. Third guide surface; 22. Locking rod; 23. Reset part; 231. First reset component; 2311. Mating position; 232. Second reset component; 233. Clamping spacing; 30. Fixing strap; 31. Restraining diameter. Detailed Implementation

[0045] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a link, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0048] [First Embodiment]

[0049] See Figure 1 , Figure 1 A schematic diagram of the structure of a constant force adjusting device 100 provided in an embodiment of this utility model; combined with Figures 2 to 10 Specifically, the constant force adjustment device 100 includes: a housing 10, an adjustment component 20, and at least one fixing strap 30; wherein, the housing 10 has an active space 101, and one end of the housing 10 has a first connection position 114; the adjustment component 20 is disposed in the active space 101 and is slidably connected to the housing 10; the end of the adjustment component 20 away from the first connection position 114 has a second connection position 201; one end of the fixing strap 30 is connected to the first connection position 114, and the other end is connected to the second connection position 201; the housing 10, the adjustment component 20, and the fixing strap 30 together form a binding aperture 31 for binding the target object; wherein, when the fixing strap 30 applies a pulling force to the second connection position 201 to move it away from the first connection position 114, the binding aperture 31 increases.

[0050] Based on the actual situation, the constant force adjustment device 100 is explained as follows: When the adjustment component 20 is stationary relative to the housing 10, the binding aperture 31 formed by the housing 10, the adjustment component 20, and the fixing strap 30 applies a continuous and constant binding force to the target object, which is the constant force in the constant force adjustment device 100. When the aperture of the target object increases, an expansion force is continuously applied to the fixing strap 30 away from the center of the binding aperture 31. The fixing strap 30 applies a pulling force to the second connection position 201 to move it away from the first connection position 114. When the expansion force is greater than the binding force, the binding aperture 31 increases. When the aperture of the target object no longer changes, and / or the expansion force is less than or equal to the binding force, the binding aperture 31 formed by the housing 10, the adjustment component 20, and the fixing strap 30 applies a continuous and constant binding force to the target object again.

[0051] In a specific example, when there are two fixing straps 30, namely the first strap and the second strap, one end of the first strap is connected to the first connection position 114 and the other end is connected to the target object; one end of the second strap is connected to the second connection position 201 and the other end is connected to the target object; the first strap, the target object and the second strap work together to form the binding diameter 31; when the diameter of the target object increases, an expansion force is applied to the second strap to move it away from the first connection position 114, causing the adjusting component 20 to move away from the housing 10 from the first connection position 114, and the binding diameter 31 increases.

[0052] For preferred options, please refer to [link / reference]. Figures 2 to 5 The housing 10 includes a first end 102 and a second end 103 disposed opposite to each other, and a first connection position 114 is disposed at the second end 103 of the housing 10.

[0053] Furthermore, the housing 10 includes a first mating part 11 and a second mating part 12 assembled into an active space 101; a first connecting position 114 is disposed on the first mating part 11; the adjustment assembly 20 includes a reset part 23 and a gear adjustment structure 21 that are mutually configured; the gear adjustment structure 21 is disposed within the active space 101 and is slidably connected to the first mating part 11; the second connecting position 201 is located at the end of the gear adjustment structure 21 away from the first connecting position 114; the reset part 23 is disposed on the first mating part 11 or the second mating part 12 and cooperates with the gear adjustment structure 21; the reset part 23 applies an elastic force to the gear adjustment structure 21 to restrict it from moving away from the first connecting position 114.

[0054] For example, when the diameter of the target object increases, the binding diameter 31 is subjected to the external tension transmitted by the target object, and the elastic force exerted on the gear adjustment structure 21 in the direction away from the first connection position 114. The gear adjustment structure 21 will exert a squeezing force on the reset part 23, causing the reset part 23 to deform, and the reset part 23 will continuously accumulate elastic force.

[0055] For further information, please refer to [link / reference]. Figure 6 The first mating part 11 includes: a first through groove 110 formed by a first side wall 111, a second side wall 112 and a third side wall 113, and a guide groove 13, the guide groove 13 being disposed on at least one of the first side wall 111 and the second side wall 112; the gear adjustment structure 21 includes: an adjustment plate 210, a limiting member 211 and a locking rod 22; wherein, the adjustment plate 210 is disposed on the first through groove 110 and is slidably connected to the first through groove 110; the limiting member 211 is disposed on the adjustment plate 210; the locking rod 22 is slidably disposed on the guide groove 13 and forms a stop engagement with the limiting member 211.

[0056] Preferably, the first through groove 110 is composed of a first sidewall 111, a second sidewall 112 disposed opposite to each other, and a third sidewall 113 located between the first sidewall 111 and the second sidewall 112.

[0057] For preferred options, please refer to [link / reference]. Figure 8 The limiting member 211 is located on the side of the adjusting plate 210 away from the first through groove 110.

[0058] In a specific example, the first sidewall 111, the second sidewall 112, and the third sidewall 113 cooperate to form a first through groove 110. The adjusting plate 210 is located in the first through groove 110 and is slidably connected with the third sidewall. A limiting member 211 is provided on the side of the adjusting plate 210 away from the first through groove 110, and a locking rod 22 that cooperates with the limiting member 211 is provided between the first sidewall 111 and the second sidewall 112. The limiting member 211 and the locking rod 22 form a skip tooth structure to prevent the adjusting plate 210 from moving excessively.

[0059] Furthermore, the gear adjustment structure 21 also includes: a plurality of locking teeth 212 spaced apart along the extension direction of the adjustment plate 210; at least a portion of the structure of the locking rod 22 is located between any two adjacent locking teeth 212; the guide groove 13, the locking teeth 212 and the locking rod 22 cooperate to form a tension adjustment group to adjust the size of the restraint diameter 31; for example, when the adjustment plate 210 moves away from the first connection position 114, the locking rod 22 moves along the guide groove 13 and falls between two other locking teeth 212.

[0060] Preferably, the guide groove 13, the snap-fit ​​tooth 212 and the locking rod 22 cooperate to form a skip tooth structure.

[0061] Furthermore, there is a movable position 213 between any two adjacent locking teeth 212; the locking teeth 212 include: a first guide surface 214, a second guide surface 215 disposed opposite to each other, and a third guide surface 216 connecting the first guide surface 214 and the second guide surface 215; the locking rod 22 is movably disposed in the movable position 213 and abuts against the second guide surface 215; wherein, during the process of the adjusting plate 210 moving away from the first connecting position 114, the second guide surface 215 presses the locking rod 22, causing the locking rod 22 to move along the guide groove 13 until the locking rod 22 disengages from the second guide surface 215 and contacts the third guide surface 216, and the locking rod 22 slides down along the third guide surface 216 and the first guide surface 214 into another movable position 213.

[0062] In a specific example, the locking teeth 212 include a first tooth 2121, a second tooth 2122, and a third tooth 2123. The locking lever 22 is located in the movable position 213 between the first tooth 2121 and the second tooth 2122. When the restraining aperture 31 is subjected to an expansion force applied by the target object, the adjusting plate 210 moves away from the first connection position 114 along the length direction of the housing 10. At this time, the second tooth 2122 on the adjusting plate 210 moves relative to the locking lever 22 towards the first end 102 of the housing 10 until the second guide surface 215 of the second tooth 2122 abuts against and gradually squeezes the locking lever 22. As the expansion force is applied, the locking lever 22 moves in a specific direction within the guide groove 13. When the locking lever 22 moves to the highest point of the guide groove 13, i.e., when the expansion force is greater than the restraining force, the locking lever 22 disengages from the second guide surface 215 and moves along the third guide surface 216 and the first guide surface 2123 of the locking teeth 212. The path formed by 4 smoothly slides into the movable position 213 between the second tooth 2122 and the third tooth 2123, restoring the continuous and constant binding force applied to the target object. At this time, the binding diameter 31 increases by the distance of one tooth. If the diameter of the target object continues to increase, the adjusting plate 210, locking rod 22 and locking tooth 212 will continue to repeat the above movement. Until the diameter of the target object no longer changes and / or the expansion force is less than or equal to the binding force, the binding diameter 31 formed by the housing 10, adjusting component 20 and fixing strap 30 will once again apply a continuous and constant binding force to the target. Through the jumping movement of the locking rod 22 between the movable positions 213 of adjacent locking teeth 212, the change process of the binding diameter 31 of the constant force adjusting device 100 can be smoothly transitioned, and it can be ensured that the adjusting plate 210 moves only a fixed distance of one locking tooth 212 each time to ensure that a constant binding force is continuously applied to the target object.

[0063] For further information, please refer to [link / reference]. Figures 7 to 10 The second mating part 12 includes a top cover 121 and a connecting rod 123. The top cover 121 is located between the first side wall 111 and the second side wall 112, and is on the side away from the first through groove 110. The connecting rod 123 is located on the side of the top cover 121 away from the first through groove 110. The reset part 23 includes a first reset member 231 and a mating position 2311. The first reset member 231 is located on the connecting rod 123 of the top cover 121. The mating position 2311 is located at at least one end of the first reset member 231, and at least a portion of the structure of the locking rod 22 is located in the mating position 2311. The first reset member 231 is used to apply an elastic force to the locking rod 22.

[0064] Preferably, the activity space 101 is formed by the combination of a top cover 121, a first side wall 111, a second side wall 112, and a third side wall 113.

[0065] Preferably, the first reset element 231 is a torsion spring.

[0066] Preferably, there is at least one first reset member 231.

[0067] In the above example, specifically, the mating position 2311 of the first reset member 231 is located on the side of the locking rod 22 near the first end 102 of the housing 10; the first reset member 231 provides resistance to prevent the adjustment plate 210 from moving, and when the forward force of the adjustment plate 210 is not easily maintained, the positions of the first reset member 231, the adjustment plate 210, and the locking rod 22 remain relatively unchanged; when the locking teeth 212 press the locking rod 22, the locking rod 22 continuously pushes the first reset member 231 in the direction away from the first connection position 114, and the first reset member 231... The locking lever 22 continues to deform and accumulate elastic force. When the locking lever 22 moves to the highest point of the guide groove 13, the squeezing force from the locking tooth 212 on the locking lever 22 disappears, and the first reset member 231 applies a restoring force to the locking lever 22. The locking lever 22 slides down into the adjacent movable position 213 along the path formed by the third guide surface 216 and the first guide surface 214 of the locking tooth 212. At this time, the adjusting plate 210 advances one length of the locking tooth 212 in the direction of the first end 102 of the housing 10, and the locking lever 22 falls into another movable position 213, blocking the adjusting plate 210 from continuing to advance.

[0068] Furthermore, the top cover 121 is provided with an movable gap 122; the reset part 23 also includes a second reset member 232, which is provided in the movable gap 122 and located on the side of the locking rod 22 away from the second connection position 201, and applies a restoring force to the locking rod 22 to reset it.

[0069] Please see Figure 2 and Figure 9 Preferably, the first reset member 231 and the second reset member 232 are connected; the second reset member 232 is located at the movable gap 122 and abuts against the corresponding inner wall of the top cover 121 to prevent the first reset member 231 from rotating.

[0070] Preferably, there is a first included angle 2141 between the first guide surface 214 and the adjusting plate 210, the second guide surface 215 is perpendicular to the adjusting plate 210, and the third guide surface 216 is an arc-shaped surface.

[0071] Preferably, a clamping gap 233 is formed between the first reset member 231 and the second reset member 232 to clamp the locking rod 22, so as to position the locking rod 22 and ensure that the locking rod 22 can return to its original position after each movement.

[0072] The second reset member 232 is provided for disassembling the adjusting plate 210. Specifically, since the movable space 101 of the housing 10 is provided through the length of the housing 10, there are two installation methods for the adjusting plate 210: the adjusting plate 210 can move from the first end 102 to the second end 103 of the housing 10, or the adjusting plate 210 can move from the second end 103 to the first end 102 of the housing 10. To facilitate the easy reset of the locking rod 22 during the installation of the adjusting plate 210, the second reset member 232 is provided on the side of the locking rod 22 away from the first end 102. During the movement of the adjusting plate 210 from the first end 102 to the second end 103, the first guide surface 214 presses the locking rod 22, and the locking rod 22 applies a pressing force to the second reset member 232. The second reset member 232 moves away from the first reset member 231. At the same time, the second reset member 232 continues to deform and accumulates restoring force. When the locking rod 22 moves to the highest point of the guide groove 13, the external force applied by the first guide surface 214 to the locking rod 22 disappears, and the second reset member 232 applies a restoring force to the locking rod 22, pushing the locking rod 22 back to its original position.

[0073] Furthermore, limiting grooves 115 are provided on both the first sidewall 111 and the second sidewall 112, and at least a portion of the structure of the adjusting plate 210 is located in the limiting grooves 115 to prevent the adjusting plate 210 from moving along the height direction of the housing 10.

[0074] Preferably, the first connection position 114 is located on the third side wall 113; the second connection position 201 is located at the end of the adjusting plate 210 away from the first connection position 114.

[0075] Furthermore, there is at least one guide groove 13, which includes at least one of the following: inclined groove, concave groove 14, V-shaped groove 16 and L-shaped groove 17; the guide groove 13 can be designed in various styles according to actual use, so that the constant force adjustment device 100 can meet the needs of various functions in different application scenarios.

[0076] In a specific example, the guide groove 13 includes a first guide groove 141, a second guide groove 142, and a third guide groove 143 connected in sequence; the second guide groove 142 is horizontally arranged, and the first guide groove 141 and the third guide groove 143 are symmetrically arranged, with a second included angle 144 between the first guide groove 141 and the second guide groove 142; the first guide groove 141, the second guide groove 142, and the third guide groove 143 cooperate to form a concave groove 14; the locking rod 22 is located in the second guide groove 142, and when the engaging teeth 212 press the locking rod 22, the locking rod 22 moves from the second guide groove 142 to the third guide groove 143. The first guide groove 141 moves in one direction until it reaches the highest point of the first guide groove 141, at which point the locking rod 22 disengages from the second guide surface 215 of the locking tooth 212. Similarly, during the installation of the adjustment plate 210, the locking rod 22 moves from the second guide groove 142 to the third guide groove 143 until it reaches the highest point of the third guide groove 143. At this point, the locking rod 22 no longer causes motion interference that prevents the locking tooth 212 from moving, and the adjustment plate 210 can be freely inserted from the first end 102 to the second end 103 of the housing 10, making the installation of the adjustment plate 210 more convenient.

[0077] [Second Embodiment]

[0078] When the guide groove 13 is an inclined groove, the constant force adjustment device 100 can be configured as follows: Figure 11 As shown.

[0079] Preferably, the reset part 23 may only include the first reset member 231, and the movable gap 122 on the top cover 121 may be eliminated.

[0080] Preferably, one end of the first reset member 231 is fixed to the connecting rod 123 to prevent the first reset member 231 from rotating.

[0081] Furthermore, in the second embodiment, the guide groove 13 of the constant force adjustment device 100 includes: a fourth guide groove 15; the fourth guide groove 15 forms a third included angle 151 with the adjustment plate 210; specifically, the locking rod 22 is located in the fourth guide groove 15. When the locking tooth 212 presses the locking rod 22, the locking rod 22 moves along the fourth guide groove 15 and presses the first reset member 231 until it moves to the highest point of the fourth guide groove 15. The locking rod 22 disengages from the second guide surface 215 of the locking tooth 212, and the first reset member 231 applies an elastic force to the locking rod 22, causing the locking rod 22 to fall into another movable position 213. At this time, the constant force adjustment device 100 completes the expansion of the length of one locking tooth 212.

[0082] Preferably, the length of the fourth guide groove 15 is greater than the sum of the length of the movable position 213 and the length of the first guide surface 214.

[0083] Preferably, the installation direction of the adjusting plate 210 is from the first end 102 to the second end 103 of the housing 10.

[0084] It should be noted that in this embodiment, the reset part 23 may include both the first reset member 231 and the second reset member 232, and the top cover 121 is provided with an movable gap 122, which will not be described in detail here.

[0085] [Third Embodiment]

[0086] In the third embodiment, please refer to Figure 12 The constant force adjustment device 100 is the same as that in the first embodiment, except that the guide groove 13 is set differently.

[0087] Furthermore, in the third embodiment, the guide groove 13 of the constant force adjustment device 100 includes: a fifth guide groove 161 and a sixth guide groove 162 arranged opposite to each other, the fifth guide groove 161 and the sixth guide groove 162 are connected, and the fifth guide groove 161 and the adjustment plate 210 form a fourth included angle 163; specifically, the fifth guide groove 161 and the sixth guide groove 162 cooperate to form a V-shaped groove 16, and the locking rod 22 is located at the connection between the fifth guide groove 161 and the sixth guide groove 162. When the locking tooth 212 presses the locking rod 22, the locking rod 22 moves along the fifth guide groove 161 until it moves to the highest point of the fifth guide groove 161, and the locking rod 22 disengages from the second guide surface 215 of the locking tooth 212. At this time, the constant force adjustment device 100 completes the expansion of the length of one locking tooth 212.

[0088] When it is necessary to install the adjustment plate 210, it can be installed from the first end 102 of the housing 10 to the second end 103. At this time, the locking rod 22 is located in the sixth guide groove 162. The subsequent process will not be described in detail here. The specific movement process can be referred to the first embodiment above.

[0089] It should be noted that the third embodiment differs from the second embodiment in that when the locking rod 22 is installed from the second end 103 to the first end 102, the second guide surface 215 of the locking tooth 212 presses the locking rod 22 into the fifth guide groove 161. The subsequent process will not be described in detail here. For the specific movement process, please refer to the first embodiment described above.

[0090] [Fourth Embodiment]

[0091] When the guide groove 13 is an L-shaped groove 17, the constant force adjustment device 100 can be configured as follows: Figure 13 As shown.

[0092] Preferably, the reset part 23 may only include the first reset member 231, and the movable gap 122 on the top cover 121 may be eliminated.

[0093] Preferably, one end of the first reset member 231 is fixed to the connecting rod 123 to prevent the first reset member 231 from rotating.

[0094] Furthermore, in the fourth embodiment, the guide groove 13 of the constant force adjustment device 100 includes: a seventh guide groove 171 and a second guide groove 142. There is a fifth included angle 173 between the seventh guide groove 171 and the eighth guide groove 172, which cooperate to form an L-shaped groove 17. Specifically, the locking rod 22 is located in the eighth guide groove 172. When the locking tooth 212 presses the locking rod 22, the locking rod 22 moves along the seventh guide groove 171 until it moves to the highest point of the seventh guide groove 171. The locking rod 22 disengages from the second guide surface 215 of the locking tooth 212. At this time, the constant force adjustment device 100 completes the expansion of the length of one locking tooth 212.

[0095] Preferably, the installation direction of the adjusting plate 210 is from the second end 103 to the first end 102 of the housing 10.

[0096] It should be noted that in this embodiment, the reset part 23 may include both the first reset member 231 and the second reset member 232, and the top cover 121 is provided with an movable gap 122, which will not be described in detail here.

[0097] It should be noted that the present invention does not impose too much limitation on the number of guide grooves 13. The arrangement of guide grooves 13 in the first, second, third and fourth embodiments is only for the purpose of understanding the design principle and idea of ​​the skip tooth structure of this solution. In addition to the above four arrangements, there are other types of guide grooves 13, which will not be described in detail here.

[0098] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A constant force adjustment device, characterized by, The constant force adjusting device comprises a shell (10), a first connecting position (114) is arranged at one end of the shell (10), and a movable space (101) is arranged in the shell (10); an adjusting assembly (20) is arranged in the movable space (101) and is in sliding connection with the shell (10); a second connecting position (201) is arranged at one end of the adjusting assembly (20) which is away from the first connecting position (114); at least one fixing belt (30) is arranged, one end of the fixing belt (30) is connected with the first connecting position (114), and the other end of the fixing belt (30) is connected with the second connecting position (201); the shell (10), the adjusting assembly (20) and the fixing belt (30) form a restraint caliber (31) for restraining a target object; and when the fixing belt (30) applies a pulling force to the second connecting position (201) to make the second connecting position (201) away from the first connecting position (114), the restraint caliber (31) is enlarged.

2. The constant force adjusting device according to claim 1, wherein the shell (10) comprises a first fitting part (11) and a second fitting part (12) which are assembled to form the movable space (101); the first connecting position (114) is arranged at the first fitting part (11); the adjusting assembly (20) comprises a reset part (23) and a gear adjusting structure (21) which are arranged in cooperation with each other; the gear adjusting structure (21) is arranged in the movable space (101) and is in sliding connection with the first fitting part (11); the second connecting position (201) is arranged at one end of the gear adjusting structure (21) which is away from the first connecting position (114); and the reset part (23) is arranged on the first fitting part (11) or the second fitting part (12) and cooperates with the gear adjusting structure (21); the reset part (23) applies an elastic force to the gear adjusting structure (21) to limit the gear adjusting structure (21) from moving away from the first connecting position (114).

3. The constant force adjusting device according to claim 2, wherein the first fitting part (11) comprises a first through groove (110) which is formed by a first side wall (111), a second side wall (112) and a third side wall (113); and a guide groove (13) is arranged on at least one of the first side wall (111) and the second side wall (112); the gear adjusting structure (21) comprises an adjusting plate (210) which is arranged in the first through groove (110) and is in sliding connection with the first through groove (110); a limiting piece (211) which is arranged on the adjusting plate (210); and a locking rod (22) which is arranged in the guide groove (13) and is in stop cooperation with the limiting piece (211).

4. The constant force adjusting device according to claim 3, wherein the gear adjusting structure (21) further comprises a plurality of clamping teeth (212) which are arranged in the extending direction of the adjusting plate (210) and are spaced apart from each other. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At least part of the locking rod (22) is located between any two adjacent clamping teeth (212); The guide groove (13), the clamping teeth (212) and the locking rod (22) cooperate to form a tension adjusting group to adjust the size of the binding caliber (31).

5. The constant force adjusting device according to claim 4, characterized in that, An active position (213) is present between any two adjacent clamping teeth (212); The clamping teeth (212) comprise: Oppositely arranged first and second guide surfaces (214, 215) and a third guide surface (216) connecting the first and second guide surfaces (214, 215); The locking rod (22) is movably arranged in the active position (213) and abuts against the second guide surface (215).

6. The constant force adjusting device according to claim 3, characterized in that, The second matching part (12) comprises: A top cover (121) located between the first and second side walls (111, 112) and away from one side of the first through groove (110); The reset part (23) comprises: A first reset member (231) arranged on the top cover (121); A matching position (2311) arranged on at least one end of the first reset member (231), and at least part of the locking rod (22) is located in the matching position (2311); The first reset member (231) is used to apply the elastic force to the locking rod (22).

7. The constant force adjusting device according to claim 6, characterized in that, The top cover (121) is provided with an active spacing (122); The reset part (23) further comprises: A second reset member (232) arranged in the active spacing (122) and located on a side of the locking rod (22) away from the second connecting position (201) and applying a restoring force to the locking rod (22) to reset it.

8. The constant force adjusting device according to claim 3, characterized in that, The guide groove (13) is at least one, and the guide groove (13) comprises at least one of a slope, a concave groove (14), a V-shaped groove (16) and an L-shaped groove (17).

9. The constant force adjusting device according to claim 3, characterized in that, The first connecting position (114) is located on the third side wall (113); The second connecting position (201) is located on an end of the adjusting plate (210) away from the first connecting position (114).

10. A rubber tapping machine characterized in that, It comprises: The constant force adjusting device as claimed in any one of claims 1 to 9.

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